Plant Guild #6: Groundcover Plants

Artichokes are mining plants, but also have a low enough profile to be a groundcover plant. They make excellent chop-and-drop

Artichokes are mining plants, but also have a low enough profile to be a groundcover plant. They make excellent chop-and-drop. Flanking are lavender, scented geranium (left), and borage.

In most ecosystems that offer easy food for humans, the ground needs to be covered.  Layers of leaves, organic matter from animals (poo, fur, carcasses, meal remains, etc.) , dropped branches and twigs, fallen flowers and fruit, and whatever else gravity holds close to the earth, compost to create soil and retain water and protect the soil from erosion and compaction.  Areas that don’t have this compost layer are called deserts.  If you want to grow an assortment of food for humans, you have to start building soil. Even in desert communities where there are some food plants growing, such as edible cactus, mesquite beans, etc., there is biodiversity on a more microscopic scale than in old growth forests.  In deserts the soil needs to absorb what little rain there is and do it quickly before it evaporates, and plants have leaves adapted to have small leaf surfaces so as not to dry out, and there are few leaves to drop.  Whereas in areas where there are large forests the weather is usually wetter, tall plants and thick underbrush provide multiple layers of protection both on the plants and when they fall to layer the earth.

Nasturtium reseeds itself annually, is edible with a bite of hotness, detracts aphids from other plants, and is charming. Don't let it get away in natural areas, though.

Nasturtium reseeds itself annually, is edible with a bite of hotness, detracts aphids from other plants, and is charming. Don’t let it get away in natural areas, though.

A quick way to build soil in plant guilds is to design for plants that will cover the ground. This isn’t necessarily the same groundcover as you would use to cover embankments.  For instance, iceplant can be used in a pinch, but it really isn’t the best choice in most plant guilds unless you are in a very dry climate, and your plant guild is mostly desert-type plants: date palm, etc.  Annuals can be squash or other aggressive food-producing vines such as unstaked tomatoes.  However you don’t need to consider just ground-hugging plants; think sprawling shrubs.

Scented geraniums are a great 'placeholder plant'. These Pelargoniums (not true geraniums) come in a wide variety of fragrances. We've found bird nests in these!

Scented geraniums are a great ‘placeholder plant’. These Pelargoniums (not true geraniums) come in a wide variety of fragrances. We’ve found bird nests in these!

When guests tour through Finch Frolic Garden, they often desire the lush foresty-feel of it for their own properties, but have no idea how to make it happen.  This is where what I call ‘placeholder plants’ come in.  Sprawling, low-cost shrubs can quickly cover a lot of ground, protect the soil, attract insects, often be edible or medicinal, be habitat for many animals, often can be pruned heavily to harvest green mulch (chop-and-drop), often can be pruned for cuttings that can be rooted for new plants to use or to sell, and are usually very attractive. When its time to plant something more useful in that area, the groundcover plant can be harvested, used for mulch, buried, or divided up.  During the years that plant has been growing it has been building soil beneath it, protecting the ground from compaction from the rain.  There is leave mulch, droppings from lizards, frogs, birds, rabbits, rodents and other creatures fertilizing the soil.  The roots of the plant have been breaking through the dirt, releasing nutrients and developing microbial populations.  Some plants sprawl 15′ or more; some are very low-water-use.  All of this from one inexpensive plant.

Squash forms an annual groundcover around the base of this euphorbia.

Squash forms an annual groundcover around the base of this euphorbia.

Depending upon your watering, there are many plants that fit the bill, and most of them are usable herbs.  Scented geraniums (Pelargonium spp.), lavender, oregano, marjoram, culinary sage, prostrate rosemary, are several choices of many plants that will sprawl out from one central taproot.  Here in Southern California, natives such as Cleveland sage, quail bush (which harvests salt from the soil), and ceanothus (California lilac, a nitrogen-fixer as well), are a few choices. Usually the less water use the plant needs, the slower the growth and the less often you can chop-and-drop it.  With a little water, scented geraniums can cover 10 – 15 feet and you can use them for green mulch often, for rooted cuttings, for attracting insects, for medicine and flavoring, for cut greenery, for distillates if you make oils, etc.

Sweet potatoes make a great ground cover. Choose varieties that produce tubers directly under the plant rather than all along the stems so that you don't have to dig up your whole guild to harvest.

Sweet potatoes make a great ground cover. Choose varieties that produce tubers directly under the plant rather than all along the stems so that you don’t have to dig up your whole guild to harvest.

Groundcover plants shouldn’t be invasive.  If you are planting in a small guild, planting something spreading like mint is going to be troublesome.  If you are planting in larger guilds, then having something spreading in some areas, such as mint, is fine.  However mint and other invasives don’t sprawl, but produce greenery above rootstock, so they are actually occupying more space than those plants that have a central taproot and can protect soil under their stems and branches.  Here at Finch Frolic Garden, we have mint growing freely by the ponds, and in several pathways.  Its job is to crowd out weeds, build soil, and provide aromatherapy. I’d much rather step on mint than on Bermuda grass, and besides being a superb tea herb, the tiny flowers feed the very small bees, wasps and flies that go unsung in gardens in favor of our non-native honeybees (there are no native honeybees in North America).

Here’s a general planting tip: position plants with fragrant leaves and flowers near your pathways for brush-by fragrance.  You should have a dose of aromatherapy simply by walking your garden path.  Mints are energizing, lavenders calming, so maybe plan your herbs with the pathways you take in the morning and evening to correspond to what boost you need at that time.

Consider groundcover plants and shrubs that will give you good soil and often so much more.

Next up: Vining Plants.

You can find the entire 9-part Plant Guild series here: Plant Guilds: What are they and how do they work? The first in a series. , Plant Guild #2: Canopy , Plant Guild #3: Sub-Canopy , Plant Guild #4: Nitrogen-Fixers, Plant Guild #5: Mining Plants,  Plant Guild #7: Vines,   Plant Guild #8: Insectiaries, Plant Guild #9: The Whole Picture.

What makes up a plant guild.

What makes up a plant guild.

 

Ponds and Potatoes; A Finch Frolic New Year’s Celebration

IMG_9350Our sixty degree weather here in Fallbrook, CA , gave us the opportunity to work in our garden.  A year ago – 2014 – it snowed on New Year’s Eve.  This year the nights are frosty, the days mercifully warmer, and the rain frustratingly rare.  Our promised El Nino rains are expected to hit in force within the next couple of months.  Weather they do or not, focusing on catching every precious drop in the soil, and protecting the ground from erosion and compaction, is paramount.

Permaculture in rows. Pretty nice soil, which had been silt from the street a couple of years ago, mixed with chicken straw, topped with leaves. No chemicals!

Permaculture in rows. Pretty nice soil, which had been silt from the street a couple of years ago, mixed with chicken straw, topped with leaves. No chemicals!

The last day of 2015 Miranda and I spent working one of our vegetable garden beds, and reshaping our kitchen garden. When we redesigned this garden by removing (and burying) the raised beds, hugelkulturing and planting, we made a lovely Celtic design.

The unplanted kitchen garden newly designed in January, 2013.

The unplanted kitchen garden newly designed in January, 2013.

However the plants just won’t respect the design, so we’ve opted to lessen the pathways, turning the beds into keyhole designs for more planting space. I’ll blog more about that in the future. Because the pathways have been covered in cardboard and woodchips (sheet mulched), the soil below them is in very good shape, not dry and compacted.

How deep do roots grow? This clump of oxalis (sour grass) is white because it was growing without light under the pathway sheet mulch. The corms at the end of the long roots are about 8 inches below the plant. Good soil means deep roots; I've never seen this plant have anything but shallow roots.

How deep do roots grow? This clump of oxalis (sour grass) is white because it was growing without light under the pathway sheet mulch. The corms at the end of the long roots are about 8 inches below the plant. Good soil means deep roots; I’ve never seen this plant have anything but shallow roots.

This bed has been home to sweet potatoes and various other plants, so although I try to practice the no-dig method, where you have root vegetables you must gently probe the soil for goodies.  We left some of the roots, so sweet potatoes will again rise in this bed.

Miranda planting potatoes and shallots in rows. Between these rows and around the outisde other veggies were planted.

Miranda planting potatoes and shallots in rows. Between these rows and around the outisde other veggies were planted.

We planted in rows.  Usually I mix up seeds, but this time I wanted to demonstrate polyculture in row form.  We planted three rows of organic potatoes (purchased from Peaceful Valley Organics), with a row of shallots between them.  Between the root vegetable rows we planted a row of fava beans, and a row of sugar pod peas.  Around the edges Miranda planted rows of bull’s blood beets, Parisienne carrots, and maybe some parsnips.  This combination of plants will work together in the soil, following the template of a plant guild.  We left the struggling eggplant, which came up late in the year after the very hot summer and has so far survived the light frost.

Sticks. So important for the soil. These went in vertically around the planting bed to act both as one type of gopher deterrent (a physical barrier) and also as food and as water retention for the veggies.

Sticks. So important for the soil. These went in vertically around the planting bed to act both as one type of gopher deterrent (a physical barrier) and also as food and as water retention for the veggies.

On top of the bed we strew dead pond plants harvested from our small pond near our house, which will be receiving an overhaul soon (hopefully before the Pacific chorus frogs start their mating season in force).  We didn’t water the seeds in, as there is rain predicted in a few days.  The mulch on top will help protect the seeds from hungry birds.

The finished bed topped with dead pond weeds (which don't have seeds that will grow on dry land!). The sticks are to steady future bush peas.

The finished bed topped with dead pond weeds (which don’t have seeds that will grow on dry land!). The sticks are to steady future bush peas.

A good way to spend the last day of the year: setting seeds for food in the spring.

The little pond, which is also a silt basin, almost completely filled by an enthusiastic clump of pickerel.

Before: The little pond, which is also a silt basin, almost completely filled by an enthusiastic clump of pickerel.  This pond is wonderful habitat for birds, frogs, dragonflies, and so many other creatures, and as a water source for raccoon, possum, coyotes, ducks, and who knows what else that visits in the night.

Then on January 1 I decided it was a good opportunity to clear out the excess pickerel that had taken over our lower small pond.  With the well off for the winter, and very light rainfall, this pond has gone dry.  A perfect opportunity for me to get in there with a shovel, especially knowing that I already had a chiropractor’s appointment set for Monday (!).

Making some headway.

Making some headway.

The mud was slick and spongy, but not unsafe, and not nearly as smelly as I had anticipated.  Pickerel is not a native to San Diego, but it is a good habitat pond plant and it has edible parts.  I wasn’t tempted, however.  Its roots are thick and form a mat several inches thick hiding rhizomes that are up to an inch in diameter.  I’d cut into the mass from several sides, pull the mass out with my gloved hands and throw the heavy thing out of the pond.  Its good to be in contact with the earth, in all its forms. I couldn’t think of a better way to use the holiday afternoon.

Thick root mass hiding large rhizomes made removal a real exercise. This is why I practice yoga and attend Zumba class with Ann Wade at the Fallbrook Community Center!

Thick root mass hiding large rhizomes made removal a real exercise. This is why I practice yoga and attend Zumba class with Ann Wade at the Fallbrook Community Center!

I moved at least a ton of material in four hours.  Just before sunset I decided that I was done.  About an hour before that, my body had decided that I was done, but I overrode its vote to finish.  I left some pickerel for habitat and looks, and will try to contain it by putting some sort of a physical barrier along the roots, such as urbanite.

Removal of one of the three really nasty plants around the edge was a victory. The ends of their leaves are like needles, and impossible to walk past or work around, and dangerous for little kids. This root ball was harder to dig out than the mucky pickerel, and the success even sweeter. Revenge for all the pokes!

Removal of one of the three really nasty plants around the edge was a victory. The ends of their leaves are like needles, and impossible to walk past or work around, and dangerous for little kids. This root ball was harder to dig out than the mucky pickerel, and the success even sweeter. Revenge for all the pokes!

We also might harvest some of the silty clay for use in the upper pond, although the prospect of carting heavy wet mud uphill isn’t as appealing as it might sound.  That needs to happen today or tomorrow, as the aforementioned rain is expected, and I want to fill this pond again for the frogs.

After: Finished with the digging. Still more work to do -including cleanup of the mountain of organic matter - before refilling.

After: Finished with the digging. Still more work to do -including cleanup of the mountain of organic matter – before refilling.

One good thing about the pond going dry is that there are no more mosquito fish (gambuzia) in it.  Mosquito fish are very invasive, and love to eat frog’s eggs and tadpoles far better than they do mosquito larvae.  When the pond fills with non-chemically treated water (rain and well water), some of the microscopic aquatic creatures will repopulate the water. I’ll add some water from the big pond as well to make sure there are daphnia and other natural water friends in it, which will do a much better job at mosquito control without sacrificing our native frogs.  I can’t get all the gambuzia out of our big pond, but at least they are out of the other two.  Once dragonflies start in again, their young will gladly eat mosquito larvae.

So here on the morning of the second day of 2016, I lay in my warm bed prior to rising to start the chores of the day, stiff as an old stiff thing as my body adjusts to strenuous manual labor again, looking forward to more gardening duties to prepare Finch Frolic Garden for the reopening March 1, and for the rains.

The best part of heavy gardening duties is that I can finish off the Christmas cookies guilt-free!

Podcasts with Diane Kennedy

Two podcasts with me talking about permaculture, Finch Frolic Garden, and how you can save money and the world through gardening! 🙂 Please let me know what you think:

This is a podcast with Sheri Menelli of earthfriendlyhomeowner.com, where I talk pretty much without a pause for breath for about the first ten minutes.  Recorded in May, 2015.

Ep7: Interview with Diane Kennedy of Finch Frolic Gardens and Vegetariat.com

This is a podcast with Greg Peterson of Urban Farm Podcasts, released Jan. 7, 2016, and you can listen to it several ways:

Urban Farm U:  

Plant Guild #3: Sub-Canopy!

The many layers of a food forest. Yours doesn't have to be this rampant and wild; your plant guilds can look perfectly proportioned and decorative and still be permaculture.

The many layers of a food forest, Finch Frolic Garden.  Yours doesn’t have to be this rampant and wild; your plant guilds can look perfectly proportioned and decorative and still be permaculture.

The next part of this scintillating series of What Is A Plant Guild focuses on sub-canopy, or the understory.  Sub-canopy does many of the same things that upper canopy does, in a more intensive way.

Smaller trees are ‘nurseried’ in with the help of faster-growing canopy trees; in other words, the upper canopy helps shade and protect the sub-canopy from scorching sun, high winds, pounding hard rain and hail, etc.  However, sub-canopy trees can also be made of the slower, longer-lived canopy trees that will eventually dominate the plant guild/forest.  I’ve talked about how, if an area of forest was wiped clear and roped off, in a hundred years the beginnings of a hardwood forest will have begun.  This is due to succession plants making the soil ready for the next.  Each plant has a purpose.  This phrase is an essential mantra in permaculture because it lets you understand what the plants are doing and then you can let them do it.  So if you planted a fast-growing soft wood canopy tree, maybe even one that is a nitrogen-fixer, such as ice cream bean, or acacia, with a sub-canopy trees that include both something that is going to stay relatively small such as a semi-dwarf fruit tree, along with a slower growing, hardwood tree such as an oak which will eventually become the true canopy tree years down the line, then the original softwood tree would eventually be sacrificed and used as mulch and hugelkultur after the hardwood tree had gained enough height.  Wow, that was a long sentence.  At first that hardwood tree would be part of the sub-canopy until it grows up.  Meanwhile there are other true sub-canopy trees that stay in that height zone for their life.

What makes up a plant guild.

What makes up a plant guild.

Remember, too, that plant guilds are relative in size.  If you have a small backyard you may not have room for a tall canopy tree, especially if it is detrimental to the rest of the property.  So scale the whole guild down.  Canopy for you could be a dwarf fruit tree, and sub-canopy could be blueberry bushes.  In a vegetable setting the canopy could be corn or Jerusalem artichokes, where you either leave the dead canes up overwinter (a great idea to help the birds), or chop and drop them to protect the soil, which mimics the heavy leaf drop from a deciduous tree.  The plant guild template is the same; the dimensions change with your needs and circumstance.

So sub-canopy buffers sunlight coming in from an angle.

It receives rain from the upper canopy further slowing it down and shattering the droplets so that it doesn’t pound the earth.  The lower branches also help catch more fog, allowing it to precipitate and drip down as irrigation.  Leaves act as drip irrigation, gathering ambient moisture, condensing it, helping clean it, and dripping it down around the ‘drip line’ of the trees, just where the tree needs it.

An oak working a temp job as sub-canopy until it grows into canopy, being a support for climbing roses and nitrogen-fixing wisteria.

An oak working a temp job as sub-canopy until it grows into canopy, being a support for climbing roses and nitrogen-fixing wisteria.  This is the formal entrance to Finch Frolic Garden.

With its sheltering canopy it holds humidity closer to the ground.  In the previous post I talked about the importance of humidity in dry climates for keeping pollen hydrated and viable.

It further helps calm and cool winds, and buffers frost and snow damage.  Sub-canopy gives a wide variety of animals the conditions for habitat: food, water, shelter and a place to breed.  While the larger birds, mostly raptors, occupy the upper canopy, the mid-sized birds occupy the sub-canopy.  Depending upon where you live, a whole host of other animals live here too: monkeys, big snakes, leopards, a whole host of butterflies and other insects using the leaves as food and to form chrysalis, tree squirrels, etc.  Although many of these also can use canopy, it is the sub-canopy that provides better shelter, better materials for nesting, and most of the food supply.  And again, the more animals, the more organic materials (poop, fur, feathers, dinner remains) will fall to fertilize the soil.

Sub-canopy gives us humans a lot of food as well, for in a backyard plant guild this can be the smaller fruit trees and bushes.

Sub-canopy also provides more vertical space for vines to grow.  More vines mean more food supply that is off the ground.  A famous example of companion planting is the ‘three sisters’ Native American method… what tribe and where I’m not sure of… where corn is planted with climbing beans and vining squash.  The corn, as mentioned before, is the canopy, the beans use the corn as vertical space while also fixing nitrogen in the soil (we’ll discuss nitrogen fixers in another post), and the squash is a groundcover (also will be covered in another post).  There is more to the three sisters than you think.  Raccoons can take down a corn crop in a night; however, they don’t like to walk where they can’t see the ground, i.e. heavy vines, so the squash acts as a raccoon deterrent.  To stray even further off-topic, there is also a fourth sister which isn’t talked about much, and that is a plant that will attract insects.

Back to sub-canopy, while some of it can be long term food production trees or plants, it too can also have shorter chop-and-drop trees.  Chop-and-drop is a rather violent term given to the process of growing your own fertilizer.  Most of these trees and plants are also nitrogen fixers.  These fast-growing plants are regularly cut, and here is where the difference between pruning and chopping comes to bear, because you aren’t shaping and coddling these trees with pruning, you are quickly harvesting their soft branches and leaves to drop on the ground around your plant guild as mulch and long term fertilizer.  If these trees are also nitrogen fixers, then when you severely prune them the nitrogen nodules on the roots will be released in the soil as those roots die; the tree will adjust the extent of its roots to the size of its canopy because with less canopy it cannot provide enough nutrients for that many roots, and it doesn’t need that many roots to provide food for a smaller canopy.  Wow, another huge sentence.  In this system you are growing your own fertilizer, which is quickly harvested maybe only a couple of times a year.  Chemical-free.  So, by planting sub-canopy that is long term food producing trees such as apricots or apples, along with smaller trees and shrubs that are also sub-canopy but are sacrificial to be used as fertilizer such as senna or acacia or whatever grows well in your region, you have the most active and productive part of your plant guild.

Sub-canopy, therefore, provides shelter for hardwoods, provides a lot of food for humans as well as habitat for so many animals, it provides fertilizer both because of its natural leaf drop and because of those same animals living in it, but also as materials for chopping and dropping, it buffers sun, wind and rain, holds humidity, offers vertical space for food producing vines which will then be in reach for easier harvesting, and much more that I haven’t even observed yet but maybe you already have.

The next part of the series will focus on nitrogen-fixers!  Stay tuned. You can find the entire 9-part Plant Guild series here: Plant Guilds: What are they and how do they work? The first in a series. , Plant Guild #2: Canopy , Plant Guild #4: Nitrogen-Fixers, Plant Guild #5: Mining Plants, Plant Guild #6: Groundcovers, Plant Guild #7: Vines,   Plant Guild #8: Insectiaries, Plant Guild #9: The Whole Picture.

 

 

Plant Guilds #2: Upper Canopy

An oak is home to over 300 species.

An oak is home to over 300 species.  Not counting human.

Whether you are planting small plants in pots, ornamentals in your yard or a food forest, you need plants that will provide an upper canopy for others.  If you have small plants, then you will have a short canopy.  Maybe your canopy is a tomato plant.  Maybe its an oak.  Whatever it is, canopy has many functions.IMG_7446

Upper canopy provides shade so that other plants can grow.  It drops leaves, bark, flowers and seeds and/or fruit to provide compost and food for all levels of animals down to soil microbes.  Canopy provides protective shelter for many kinds of mammals, birds, reptiles and insects as they hide under the leaves. A mature oak is home to over 300 species. Old scarred canopy full of holes is the natural home for honeybees, and many types of bird and other animal.  It is a storage unit for acorns gathered by woodpeckers. Where you have animals, you have droppings. All the poo, feathers, regurgitated pellets, fur, scales and other organic waste that falls from canopy is vitally important for the health of the soil below.

Canopy provides a perch for raptors and larger birds that help with rodent control.

Canopy helps slow the wind; the fewer trees we have the harder the winds.  Canopy also filters the wind, blocking dust and other debris. Canopy helps cool and moisturize the wind. The leaves of canopy trees help buffer the rain.  Rain on bare ground is as compacting as driving over the dirt with a tractor.  If rain hits leaves it bounces, rolls or shatters.  Rain can then hit other layers below the canopy, finally rolling through leaf mulch to percolate into the soil without compacting it.

Canopy catches moisture as well.  Here in Southern California we may not receive a lot of rain, but we do have moisture during the night. Soy, fog 1-29-13 032 Often I’ve walked through Finch Frolic Garden of a morning to feed the hens, and the garden sounded as if it had its own special rain cloud over it.  That is because moisture condenses on the leaves and rolls off.  The more canopy and the higher the canopy, the more water we can collect.  In that same way, canopy begins to hold humidity on the property, which the rest of the guild contributes to.  Pollen dries out.  With longer, hotter, drier summers there is worse pollination even if the pollinators are active, because the pollen isn’t viable.  Less humidity equals fewer fruits, nuts and vegetables.  Therefore, the more canopy, and other parts of a guild, the moister the air and the better the harvest.IMG_2390

Canopy is in connection with all other plants in its community, linked via webs called mycorrhizal fungi. Through these webs the canopy sends chemical messages and nutrients to other plants.  Every plant in the community benefits from the strong communications from the canopy trees.

Canopy builds soil.  Canopy trees are large on top and equally large underground.  Tree root growth can mirror the height and width of the above-ground part, and it can be larger.  Therefore canopy trees and plants break through hard soil with their roots, opening oxygen, nutrient and moisture pathways that allow the roots of other plants passage, as well as for worms and other decomposers. As the roots die they become organic material deep in the soil – effortless hugelkultur; canopy is composting above and below the ground.  Plants produce exudates through their roots – sugars, proteins and carbohydrates that attract and feed microbes.  Plants change their exudates to attract and repel specific microbes, which make available different nutrients for the plant to take up.  A soil sample taken in the same spot within a month’s time may be different due to the plant manipulating the microbes with exudates.  Not only are these sticky substances organic materials that improve the soil, but they also help to bind loose soil together, repairing sandy soils or those of decomposed granite.  The taller the canopy, the deeper and more extensive are the roots working to build break open or pull together dirt, add nutrients, feed and manage microbes, open oxygen and water channels, provide access for worms and other creatures that love to live near roots.

Canopy roots have different needs and therefore behave differently depending upon the species.   Riparian plants search for water.  If you have a standing water issue on your property, plant thirsty plants such as willow, fig, sycamore, elderberry or cottonwood. In nature, riparian trees help hold the rain in place, storing it in their massive trunks, blocking the current to slow flooding and erosion, spreading the water out across fields to slowly percolate into the ground, and turning the water into humidity through transpiration. The roots of thirsty plants are often invasive, so be sure they aren’t near structures, water lines, wells, septic systems or hardscape. Some canopy trees can’t survive with a lot of water, so the roots of those species won’t be destructive;  they will flourish in dry and/or well-draining areas building soil and allowing water to collect underground.

In large agricultural tracts such as the Midwest and California’s Central Valley, the land is dropping dramatically as the aquifers are pumped dry.  Right now in California the drop is about 2 inches a month.  If the soil is sandy, it will again be able to hold rainwater, but without organic materials in the soil to keep it there the water will quickly flow away. If the soil is clay, those spaces that collapse are gone and no longer will act as aquifers… unless canopy trees are grown and allowed to age. Their root systems will again open up the ground and allow the soil to be receptive to water storage. Again, roots produce exudates, and roots swell up and die underground leaving wonderful food for beneficial fungi, microbes, worms and all those soil builders. The solution is the same for both clay and sandy soils – any soil, for that matter.  Organic material needs to be established deep underground, and how best to do that than by growing trees?

In permaculture design, the largest canopy is often found in Zone 5, which is the native strip.  In Zone 5 you can study what canopy provides, and use that information in the design of your garden.

IMG_7474How do you achieve canopy in your garden?  If your canopy is something that grows slowly, then you will need to nursery it in with a fast-growing, shorter-lived tree that can be cut and used as mulch when the desired canopy tree becomes well established.  Some trees need to be sacrificial to insure the success of your target trees.  For instance, we have a flame tree that was part of the original plantings of the garden.  It is being shaded out by other trees and plants, and all things considered it doesn’t do enough for the garden to be occupying that space (everything in your garden should have at least three purposes).  However a loquat seeded itself behind the flame tree, and the flame tree helped nursery it in.  We love loquats, so the flame tree may come down and become buried mulch (hugelkultur), allowing that sunlight and nutrient load to become available for the loquat which is showing signs of stress due to lack of light.  With our hotter, drier, longer summers, many fruit trees need canopy and nurse trees to help filter that intense heat and scorching sunlight. Plan your garden with canopy as the mainstay of your guild.

Therefore a canopy plant isn’t in stasis.  It is working above and below ground constantly repairing and improving.  By planting canopy – especially canopy that is native to your area – you are installing a worker that is improving the earth, the air, the water, the diversity of wildlife and the success of your harvest.

What makes up a plant guild.

What makes up a plant guild.

Canopy is improving the water storage of the soil and increasing potential for aquifers. The more site-appropriate, native canopy we can provide in Zone 5, and the more useful a canopy tree as the center of a food guild, the better off everything is.    All canopy asks for in payment is mulch to get it started.

Next week we’ll explore sub-canopy!  Stay tuned! You can find the entire 9-part Plant Guild series here: Plant Guilds: What are they and how do they work? The first in a series. , Plant Guild #3: Sub-Canopy , Plant Guild #4: Nitrogen-Fixers, Plant Guild #5: Mining Plants, Plant Guild #6: Groundcovers, Plant Guild #7: Vines,   Plant Guild #8: Insectiaries, Plant Guild #9: The Whole Picture.

October Garden

A huge dragonfruit; this kind is white inside.

A huge dragonfruit; this kind is white inside.

October is one of my favorite months, even when we’re on fire here in Southern California.  This year we’ve been saved, and October is moderate in temperature and lovely.

A volunteer kabocha squash vining its way through a bush.

A volunteer kabocha squash vining its way through a bush.

Our first ripeing macadamia harvest from a 3 year old tree, with a dragonfriuit snaking through.

Our first ripeing macadamia harvest from a 3 year old tree, with a dragonfriuit snaking through.

Edible hibiscus, volunteer nasturtiums and pathway across the rain catchment basin.

Edible hibiscus, volunteer nasturtiums and pathway across the rain catchment basin.

Into the wisteria-covered Nest.

Into the wisteria-covered Nest.

Summer has lost her vicious grip and we have time until the holiday rush and winter cold.  Finch Frolic Garden has withstood the heat, the dry, the inundations, the snow and the changes, all without chemicals or much human intervention.

Grasshopper freshly out of last instar.

Grasshopper freshly out of last instar.

The curly willow trellis.

The curly willow trellis.

We’ve lost some trees and shrubs this year, but that is mostly due to the faulty irrigation system which delivers too much or too little, and is out of sight underground.

Urbanite pathway.

Urbanite pathway.

Bulbs will pop up year round for wonderful surprises.

Bulbs will pop up year round for wonderful surprises.

Permaculture methods in sheet mulching, plant guilds, swales, rain catchment basins, and the use of canopy have pulled this garden through.

Loquat in bloom.

Loquat in bloom.

Bridge over currently dry streambed.

Bridge over currently dry streambed.

Bamboo bridge.

Bamboo bridge.

A gourd in a liquidamber.

A gourd in a liquidamber.

The birds, butterflies and other insects and reptiles are out in full force enjoying a safety zone.  A few days ago on an overcast morning, Miranda identified birds that were around us: nuthatches, crows, song sparrows, a Lincoln sparrow, spotted towhees, California towhees, a kingfisher, a pair of mallards, a raven, white crowned sparrows,  a thrush, lesser goldfinches, house finches, waxwings, robin, scrub jays, mockingbird, house wren, yellow rumped warbler, ruby crowned kinglet, and more that I can’t remember or didn’t see.

Squash!

Squash!

This birch has strange red fruit in its top boughs...

This birch has strange red fruit in its top boughs…

 

...a volunteer cherry tomato that is fruiting inconveniently ten feet up.

…a volunteer cherry tomato that is fruiting inconveniently ten feet up.

Birds have identified our property as a migratory safe zone.  No poisons, no traps.  Clean chemical-free pond water to drink.  Safety.

Squash and gourds happily growing out of the hugelkultur mound.

Squash and gourds happily growing out of the hugelkultur mound.

A surprise pumpkin hiding in the foliage.

A surprise pumpkin hiding in the foliage.

A huge and lovely gourd.

A huge and lovely gourd.

Vines taking advantage of vertical spaces by going up the trees.

Vines taking advantage of vertical spaces by going up the trees.

You can provide this, too, even in just a portion of your property.  The permaculture Zone 5.

Why did the gourd cross the road? To climb up a liquidamber, apparently.

Why did the gourd cross the road? To climb up a liquidamber, apparently.

A glimpse of pond through the withy hide

A glimpse of pond through the withy hide

Mouse melons on a tiny vine. More cucumber than melon, they grow to be olive-sized.

Mouse melons on a tiny vine. More cucumber than melon, they grow to be olive-sized.

Time for me to get in the water and trim back the waterlilies before the water temperature drops!

Time for me to get in the water and trim back the waterlilies before the water temperature drops!

Purple water lilies in the pond.

Purple water lilies in the pond.

I’m indulging in showing you photos from that overcast October morning, and I hope that you enjoy them.

Eden rose never fails.

Eden rose never fails.

Sweet potato vines escaping the veggie garden; the leaves are edible.

Sweet potato vines escaping the veggie garden; the leaves are edible.

See the long tan thing on the trunk? That's a zucchino rampicante, an Italian zucchini. Eat it green, or leave it to become a huge winter squash.

See the long tan thing on the trunk? That’s a zucchino rampicante, an Italian zucchini. Eat it green, or leave it to become a huge winter squash.

Violetta artichokes regrowing in our veggie garden, with a late eggplant coming up through sweet potato vines.

Violetta artichokes regrowing in our veggie garden, with a late eggplant coming up through sweet potato vines.

 

Why Buy Rain Barrels if you Own a Pool? Pool Conversion Discount!

Why buy rain barrels if you own a pool?  You can collect about 20,000 gallons of rainwater in an average pool, and use it on your landscaping and for swimming if you don’t chlorinate it.  If you have a pool or pond and put chemicals into it, or have a saltwater pool or one that is treated with UV light, you really need to read about how toxic those systems really are and how to change your pool into a swimmable, clean pond on PuraVidaAquatic.com.  On that site is a host of great information about how bad mosquito fish are, how to make a truly healthy pond, why having a pond in a drought is a great idea and so very important, and so much more.  If you live in Southern California and have a pool, you’ll be interested in this Fall Special:

20 Percent Off Ad

A Zero Irrigation Garden

Plants, mulch and newspapers waiting for action.

Plants, mulch and newspapers waiting for action.

In response to the water cutbacks, the County of San Diego Dept. of Parks and Recreation deemed it necessary to turn off irrigation to the front two planting beds of the Fallbrook Community Center.  The plan was to tear out the plants and replace them with decomposed granite and a bench.

At first this looked like too little mulch.  Then it spread.

At first this looked like too little mulch. Then it spread, and kept on spreading.  You can see the overgrown planter behind me and Bill.

Health and fitness instructor Ann Wade, also the president of the Friends of the Fallbrook Community Center, contacted me and I came up with a design using native plants and a variety of succulents that could survive without irrigation.  More than that, simple earthworks in the form of swales and small rain catchment basins could be dug to hold run-off, and sheet mulch applied to retain moisture.  The plan was accepted and several weeks ago we had a planting.

Lynne with the plant that pulled her in.

Lynne with the plant that pulled her in.

A big portion of the planting was to remove the existing plants that would have died anyway.  These plants had been haphazardly installed, and apparently most were leftovers from a long-ago Fallbrook Garden Club plant sale.

Ann and Lynne tackling a reluctant plant.

Ann and Lynne tackling a reluctant plant.  We replanted as many as we could that could adapt to the lack of irrigation.  Others went home with volunteers or were mulched.

The Community Center sign was partially blocked, sea lavender had to be cut practically in half to keep it out of the pathway, and some bushes had to constantly shaped.  As much as I dislike removing plants, they had to go.

Lynne, Dorothy and Barbara with Miranda in the background.  They had no idea what they had volunteered for!

Lynne, Dorothy and Barbara with Miranda in the background. They had no idea what they had volunteered for!

On a hot summer’s day many wonderful friends of mine and my daughter arrived to do permaculture at the Community Center.  A good portion of the morning was spent hacking out the existing plants.

McKenna and Dorothy tackle bulbine.

McKenna and Dorothy tackle bulbine.

The ground was so hard from years of spray irrigation and rainwater runoff that these plants had to be chopped rather than dug.  The roots had formed a solid mat close to the surface in their desperate search for water.

Dorothy and me clearing out the old.  These blocked the sign.

Dorothy and me clearing out the old. These plants blocked the sign.

The irrigation had been run the night before, but very little of this water was evident, and some of it showed evidence that it simply ran off.  This removal process took much longer than I had anticipated, but after the slaughter we were able to move ahead.

Jakie and Jackson help Miranda cut down a shrub.

Jakie and Jackson help Miranda cut down a shrub.

I dug shallow swales perpendicular to the flow of rainwater from the sidewalk and roof.  Dug is not the best word here; chopped would be better as the soil was so hard.  I also dug some shallow basins around the planting beds, making the soil surface uneven to collect rainwater.

Barbara and Miranda planting in very hard dirt.

Barbara and Miranda planting in very hard dirt.

Each bed sports an old beautiful California sycamore, a riparian tree, and with the reduction of lawn irrigation and termination of irrigation in the beds (however unhelpful that was),  these trees could be imperiled.  The swales – shallow ditches with level bottoms- would allow rainwater to percolate into the soil and travel deeply to the roots rather than run over the top.  Small swales above plants are key to holding rainwater in the soil and preventing flooding and topsoil erosion.  Swales are how we can recharge our subterranean waterways, refortify our wells and reestablish summer streambeds.

The front planted and watered.

The front planted and watered.  Ann, Bob, Bill, Gary and Grace.

We had ordered four boulders as well, and these were placed to focus the eye on the sign and the plants rather than the back wall of the Community Center, and to tie in with the stone base of the sign.  This sounds easier than it was.  To look natural, boulders should be buried 1/4 to 1/2 way into the ground.  I’m not sure which was more difficult for the volunteers: to dig a hole in that hard dirt or to move the boulders uphill and into position.  Fortunately no fingers or toes were lost and the boulders looked great.  They were chosen to be pointy so as not to entice children to sit or stand on them.

Newspapers and fliers were laid around the plants over a sprinkling of chicken manure.  I got to spread that.

Newspapers and fliers were laid around the plants over a sprinkling of chicken manure. I got to spread that.

After placing a selection of California natives appropriate for the shade, part sun and full sun areas, and placing the succulents, we sprinkled a little composted chicken manure over the soil surface and the team placed sheet mulch around the planted plants.  Sheet mulch is another inexpensive miracle that can save so much water and improve plant growth in our dry climate.

This manure would help feed microbes as they began to populate the area.  On top of that was spread cardboard, newspapers, and leftover freebie magazines (with the glossy cover discarded).  We were repurposing trash from the community center back into the planting beds!  How cool is that?  For native plants, this layer didn’t need to be thick because it was to help nursery in the new plants, suppress weeds, hold in moisture during our hot months, and act as soil protector from rainfall.

Jakie, Bill, Susan and Bob versus a sea lavender.

Jakie, Bill, Susan and Bob versus a sea lavender.

Rain on bare earth is more compacting than driving a truck over the ground.  For thirstier plants such as non-natives, thicker layers of cardboard should be added.  As a guide, think of what the plant in question at maturity might have around its base for mulch.  An avocado tree would have a very thick layer of leaves and fruit.  Avocados and citrus don’t like anything growing around their roots, so they block the sun with their foliage and cover the ground with debris.  By adding 1/2″ to 1″ or more cardboard around these trees and those plants that require more moisture, you save a lot of water and give the plant what they need to live and produce without stress.  No stress means much better chances of fighting insects and disease.  The native plants in this garden were chosen because when established they don’t like additional irrigation water, especially in the summer.

A good layer of newspapers and cardboard.

A good layer of newspapers and cardboard.  Jake and Gary working hard in the final stretch.

Therefore the cardboard layer wasn’t thick.  We also spread around some of the branches and leaves from plants we’d removed and topped them with cardboard.

Some old plant material was around to add to the soil health.  If the ground had been softer, a lot of the removed plants would have been buried.

Some old plant material was around to add to the soil health. If the ground had been softer, a lot of the removed plants would have been buried (hugelkultur).

These, too, would protect the soil and decompose as great food for the worms and microbes.  If the soil had been more forgiving, I would have buried a lot of the removed plants to build the soil.  As it was, we were lucky to chisel out planting holes for the one-gallon plants.

Watering in plants while sheet mulch is being laid.

Watering in plants while sheet mulch is being laid.

On top of the cardboard was spread gorilla hair mulch.  This shredded redwood bark is excellent for use around natives and other vegetation for many reasons.  It is fluffy, so it spreads much farther than wood chips and is the better value.  The fluffiness also prevents it from laying firmly on the soil so it doesn’t decompose as quickly as wood chips, and most importantly it doesn’t wick moisture from the ground as do wood chips on bare soil.  As gorilla hair decomposes it is a better match for our native soil composition than other mulches.    It also looks great.

Planted!

Planted!

The plants were watered in around the rootball after being planted, which saved water usage tremendously.  I was concerned that the surrounding dirt would wick the moisture away from the new plants, but after 5 days the root balls still had some moisture.  I used a watering can and gave them all about a cup of water a week after planting.  Today, after three days of triple-digit heat, I watered again and replaced a few plants that had cooked. These were my fault, having misjudged the intensity of the sun  on these particular small plants.  A few succulent showed signs of being stepped on as well, but overall the plants looked good.

Mission completed, and a visible sign!

Mission completed, and a visible sign!

The natives and succulents were all chosen to be extremely drought tolerant and to attract birds and butterflies.  Many non-native plants have very little or no habitat for animals.  We’ve removed their food and shelter and replaced them with plants that need far too much water and don’t provide nourishment or adequate nesting areas.  The succulents installed will feed hummingbirds and insects, as well as the other natives which will also provide food for other birds.

Jake surveys the finished product.

Jake surveys the finished product.

A garden should become alive with the movement of animals.  Birds, butterflies, bees, lizards… they are the motion and the life of a garden.  By using chemicals and only non-natives we rob these creatures of a home and adequate nourishment.  By planting natives along with other plants we can share our gardens with the wildlife that so desperately need habitat.

The gorilla hair also complemented the bark of the sycamores – a happy accident.  The beauty of the trees popped with the new design and mulch.

Sheet mulch around the base of the old pine.  Be sure to leave a few inches between the trunk and the mulch so as not to rot the bark.

Sheet mulch around the base of the old pine. Be sure to leave a few inches between the trunk and the mulch so as not to rot the bark.

The base of the historic Christmas pine was also sheet mulched to protect the roots from more compaction and to try and help counteract a little of the damage done to it by the artificial turf that was laid some years ago.

A successful and easy way to move a tarp full of mulch!

A successful and easy way to move a tarp full of mulch!

Because the gorilla hair spread farther than expected, the extra was used over cardboard in two additional planters which gave the front of the center a uniform look.  I could almost hear the plants sighing in relief.

Extra mulch was used for another planting bed.  If funds become available, plants can be added by simply cutting through the cardboard to plant.

Extra mulch was used for another planting bed. If funds become available, plants can be added by simply cutting through the cardboard to plant.

I was very fortunate to have been involved in this project, as it demonstrates permaculture techniques to the public and is in a very visual position in our community.  It is also in a County facility, so perhaps other facilities will begin implementing permaculture practices to save water and build soil throughout San Diego.

This project was a long, hard job and if not for the dedication and affection of my friends and daughter it most certainly would not have come to fruition.  There were many sore muscles the day after.  Thanks to District Park Manger Jake Enriquez for okaying the project, Ann Wade for initiating the scheme and working with great spirits from start to finish (and providing frozen yogurt at break time!), Bill, McKenna and Grace Wade, Miranda Kennedy for sticking with her mom with every new ‘project’ that turns out to be long hours of hard labor, Bob Lloyd of PuraVida Aquatics who drove from Ramona to work hard in the sun, Susan, Jackson and Jake Liebes and Gary Beeler of the Fallbrook Land Conservancy’s Native Plant Restoration Team, Lynne, Dorothy and Barbara who are fellow students of Ann’s, wonderful friends of mine and who won some tough battles with reluctant plants, and Johanna, the FCC leader, and the staff of Live Oak Park who came in at the end for the grand finale.  You all are wonderful people, and thank you for helping bring permaculture to a public facility!

 

Argentine Ants

Most of the annoying ants we suffer with in California, especially here in San Diego, are actually an invader called Argentine Ants.  They arrived via shipboard to Louisiana, and have spread throughout warmer climates.  Argentine ants are so successful because they have multiple queens per colony and therefore recognize all other Argentine ants as family.  They don’t fight among themselves.  There is a colony that stretches from San Diego to near San Francisco.

Argentine ants have nudged out many of our native ants, which isn’t a good thing.  We need our native ants for decomposition. Argentine ants harm arthropods and have a terrible effect on the ecosystem; here in Southern California their impact on horned lizards have been devastating.  The only way you can tell them apart (unless you have very tiny ants or black or red ants) from natives of similar size is by studying them with a microscope.  This blog post shows great photos of the difference between ants.

Argentine ants farm aphids on plants and trees, milking the bugs for their ‘honeydew’, a sweet excretion.  They will bring aphids to your plants and farm them there.  They will also farm scale underground around the trunks or stems of plants, especially natives such as California Lilac (ceanothus spp).  By the time the plant show stress and the ants begin to farm aphids above ground, much of the damage has already been done.

As much against annihilation as I am, this ant does terrible harm to our environment and should be happily living back in its native South American river area.  Not only is it directly harmful, but because it is everywhere it incites people to spray poisons that kill all the beneficial insects as well.

The best solution is a borax bait trap that you can make your own. Borax is a powerful killer and should not be used liberally.  Yes, it is sold as a fertilizer and as a laundry additive, and that borax kills insects and beneficial flora and fauna as it enters the watershed and soil. It is toxic to pets and children. However, just a little solution used wisely can really help control these ants.

I use old spice containers that have the plastic shaker ends on them for the bait traps.  The holes are small enough to prevent other insects or animals from entering the jar, but are big enough for the ants.  Otherwise you can use butter tubs with small holes punched in the top.  Put a cotton ball inside the containers.

It is recommended to make a 1% borax solution rather than a stronger one because you don’t want to kill the ants immediately.  You want them to bring the bait back to the nest and feed it to the queen.  I know that is horrible, but they would definitely do the same to us if they could.

This recipe is based on research done by entomologist John Klotz at UC Riverside.  Dissolve 1 tsp. boric acid (borax) and 6 tablespoons sugar in two cups of warm -preferably distilled or dechlorinated – water.  Soak cotton balls in the bait solution and place in spice shakers or plastic tubs with holes in the lid.  The containers will also keep the cotton ball from drying out quickly.  Place in a shady location in the path of Argentine ants.  Clean the container and replace the cotton ball weekly (it will become moldy).  At first the bait traps will attract more ants, which is fine because they are bringing the bait back to their nests.  If you want to kill the ants immediately, add more boric acid.  For long-term control, reduce the boric acid to 1/2% to allow worker ants to feed for a long time before they die and therefore bring more back to the nest.

Keep the excess boric acid solution capped and in the refrigerator well labeled, so no one drinks the sweet drink.

Be sure to keep an eye out for ant activity around the base of your native plants, and if you have aphids on the leaves of plants you no doubt have ants farming them there.  Argentine ants are pests we really can eliminate without fear, and allow our native ants to reclaim their territory.

Permaculture and Pollinators lecture

PP flier