Making friends with rodents

Blurring gray fur and tails pour like a waterfall onto the floor in front of me. A tense minute, and the place is cleared -bare, clean cement floor, and nothing but hushed scurrying sounds all around. I’d just turned on the light.

This was one summer long ago, when several old building were torn down by the Township very near our chicken house. These were an old garage, another chicken pen near it, and a large old barn. They all housed droves of rats. Where did they go when these building fell? Our place.

We had quite a clean operation. When the rats came, we cleaned it to the max, removed all the wood shavings, straw bales, any and all feed -no matter how tight its container, and even some of the chickens. Despite the cleanup, the invasion lasted for months.

They were too smart to fall for traps. Eerily, one of the traps we found set off with no rat in it, had a freshly gnawed twig from the lilac bush right outside the pen stuck in it, the bait removed. My dad stayed up several nights shooting them with pellet guns. He terminated the lives of hundreds, but only recovered a few because the rats began eating their fallen, dragging them back into their holes immediately, or gnawing into them on the spot. To say nothing of a few unfortunate chickens that fell prey when the lights went out.

The rats made this new house their home in short order -with or without resources. They dug enormous piles of soil out from under the cement flooring, brought in food from some place. We had removed everything else.

When specialists begin throwing out statements about harshly mowing orchards to keep rodent and rabbit from gnawing away bark and roots of trees, I am a bit skeptical. These creatures create habitat for themselves and are part of thriving ecologies. They are eaten by almost everything, providing a vital link in the trophic system. If you have ever studied how these systems work, reducing one part of the chain, reduces, or at least effects, all the others following. If you reduce rodents, you by default reduce potential health of the trees you’re trying to protect.

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A casualty in my parent’s small orchard. This tree was about five years old when snow fell, and a freezing rain covered the snow with a sheet of ice that remained for about two weeks. Rabbits, mice, and voles ate everything they could get at, including large trees like this one. See the gnawed bark at the bottom.

Rodents feed into a very broad system. Finding examples of what happens when rodents are entirely removed is difficult because we have seldom pulled this off in outdoor settings. If we have come close, someone is also fertilizing and pruning a lot to make up for the loss.

Rodents have many immediate effects too. For one, they dig holes, which allow more air and water to percolate into the soil. This is very good for soil health.

It’s interesting to note the trees most immune to damage by rabbits, voles, etc. are single seeded species, like peach and plum. The species most vulnerable are multi-seeded species, like apple and pear. Rodents and rabbits, every couple of years when the food gets scarce, devour the bark off a couple of these trees, killing the trees. If they didn’t these multiseeded species have a higher chance of sprouting on top of each other, and choking each other out.

Only one successful seed is necessary to replace its parent. Rodents are a factor which ensures the chance any young tree grows to adulthood is very, very low. This is a good thing in natural conditions. It means trees are more likely to be well spaced.

But how do we make our tree “the one” that grows to adulthood when we’ve already taken spacing into account?

The most effective move is just installing tree guards; simple spiral guards are fine for young trees; tree guards like these are better for larger trees. Larger trees are less vulnerable to girdling, but I have seen trunks near five inches in diameter girdled to the hard wood if the snow lays thick enough long enough. For these sizes, I am not a fan of corrugated plastic pipe guards because they’re extremely hard to get on and off, often harming the tree in the process. Even covering the trunks with tinfoil or fine wire mesh is better than nothing.

Opaque tree guards also protect from sun scald: when bright sun reflecting off cold snow heats the cold tree bark, making it crack. This isn’t good. Covering the trunk helps prevent it.

Another tactic is to provide food for the rodents (No, I’m not nuts. Keep reading). The fact is, rodents and rabbits will be present whether you like them or not. If you mow the grass, they will dig tunnels. If you remove food, they will find it, and store it.

I’m not the only one recommending this. One extension service informational pamphlet extolled mowing the grass in an orchard to the finest bits to reduce cover, yet recommended throwing out sunflower seeds when the snow fell. This is intended to divert the eminent population of rabbits, voles, and mice -now forced into starvation.

Apparently the specialists are aware their mowing and trapping are only mildly effective, and that the real issue is diverting and blocking the rodents when times get tough, not killing them. Natural predators do that.

It seems most logical to just leave the tall grass and brush -at least in isolated corners, so the rodents can feed themselves.

There are also biological deterrants, such as Sepp Holzer’s bone tar. Here is a forum discussion on the subject. Sepp Holzer explains making bone tar and its use in his book. I own a copy, and quite like it. I have never gone through the trouble of making bone tar though. Tree guards have done the job for me.

There is an idea that planting certain bulbs and other plants around a tree deter rodents and rabbits -especially voles, which eat roots underground. In controlled studies, ground covers like Pachysandra species, and bulbs like daffodils are themselves very unpalatable to rodents. This doesn’t necessarily deter their cozying up to your trees.

I’ve had trees with no guard brutally stripped by rabbits, despite a ring of daffodils around it. Keep in mind, when hunger gnaws, rodents gnaw just about anything -tasty or not. While these plants might deter voles from eating roots, don’t expect these to block the possibility of girdling.

Ecosystems keep a pretty tight control on rodents and rabbits as is. If we simply focus on making a healthy, lush habitat, giving your trees the protection to make them “the one” that succeeds in growing to adulthood, the rodents can function less as your foes and more as your friends. The alternative is certainly not as pretty.

Mastering the Growing Edge

A while back, I launched a series on this blog, post by post unfurling ten plants that cover ground. Like vibrant streaks of color, new concepts and uses popped into these posts, until the original idea was far outgrown.

The series blossomed earlier last week into Mastering the Growing Edge. You could call it a companion to PASSIVE Gardening; although the main focus in MtGE is food forests and perennial vegetables. It ties the concepts of bed building, mulch management, ground covers, and bed builders into a coherent whole.

I was able to once again work with Kindle Direct Publishing to make the digital copy free for your download today, Friday (Feb 3), and Saturday (Feb 4).

If you don’t have a Kindle, don’t worry; almost any device that displays this post can display a Kindle book by simply downloading the free Kindle app here.

I hope to hear your feedback and see the results that follow your new-found knowledge. Like a bud coaxed into bloom, this book is meant to bring the plants of a garden to full luster of growth through healthy pairings. The plants manage a lot of the growth, leaving you more time to smell the roses.

The book cover below is linked to the digital and softcover book’s page -just click.

Fertility

Tillage allows us to neglect for a while the task of replenishing organic matter because it pries from the soil’s fingers more fertility than usual. I read of one study* performed on a field tilled for 60 years without inputs. Problems were becoming apparent, but the farmer was still getting a harvest.

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It has been the same throughout history: civilizations rise and fall, often as a result of their failing fertility systems. For those that lasted, by restoring to some extent the organic matter, there were some interesting methods.

The first was to simply move from place to place, exploiting the fertility of a site, moving on to a new one once the fertility was gone. This method was practiced by a few Native American tribes.* Their particular method was called “Slash and Burn, where an area of virgin forest was cut and burned. The fertility provided from such a mass of organic matter lasted a while. This is certainly an excellent method when you have ample areas of virgin forest to work with -slash and burn, move on, and allow everything to revert to the chaos of a forest system that would slowly renew the organic matter until, in a couple hundred years, they returned to tear it down and organize it for crops again. Today such a tactic would not last long with our increasingly high population.

Many ancient cultures practiced a similar method by simply leaving the land fallow for a short time between small spans of tilling and harvesting. The ancient Israelites had in their law several different spans of time in which they were not to till a field, with the assumption they would set food by in the prior years of harvest. The usual numbers are three to seven years tilling and harvesting, to one year of lying fallow.

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[T]he ancient Egyptians, who were one of the first civilizations to use tillage, had a much more passive method which relied on the Nile river flooding to bring in organic matter from the rainforests upstream. Problem was, if the Nile didn’t flood, there was famine.

What we must realize is we are hardly in a different position today.

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In a properly managed no-till garden, we should burn less organic matter in total, but in covering the ground and supplying enough decaying organic matter to sustain the system, we use a lot of material. Bringing it in as mulch rather than broken down compost, we see organic matter in its most bulky state and realize, it’s a lot.

The Ruth Stout method is an excellent example of this. Perhaps one of the most low work, effective no-till garden methods, Ruth Stout grew excellent annual vegetables by covering the ground thickly with mulch, with some additions of manure.

When all this organic matter is added, and moisture is so well preserved by the thick cover of mulch, the soil life responds by building a home for themselves of many tunnels, creating a soil similar in consistency to crumbly chocolate cake.

The technical term for this state of soil is ‘flocculated’. Flocculation occurs when sufficient levels of active calcium are available, pulling particles out of suspension in ‘flocs’, or flakes, making the soil fluffy.

The Stout method gives excellent results in the garden. Yet again, this is not the whole picture. Take this quote for example:

The ”Stout Method” of mulching is a biological transgression similar to, though not as severe as is the social and biological transgression of polluting air and waterways with the industrial wastes. The main characteristics of the ”Stout Method” is that the soil is to be covered constantly with a thick layer of mulch hay, which requires 8 to ten tons of hay per acre annually. Based on average yields, each year 3 to 4 acres of farm soils must somewhere be deprived of organic matter replenishment so that 1 acre of backyard garden plots may get the ”Stout Method” treatment.*

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Wood chip sources we once got for free are now going to composting companies who sell the finished product by the bag to be dumped on tilled soil that will burn much of the carbon into the atmosphere. A Certified Organic CSA (Community Supported Agriculture) like ourselves can hardly find a source of clean organic matter that doesn’t charge for you to haul away their waste.

Many township yard-waste drop-offs at one time chipped up the material laboriously collected and brought to them by every yard nitpicking denizen to be carted off by the hippies for their organic gardens for free. More and more now, they sell this material to the compost companies.

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According to the United States Composting Council, there are currently four chemicals likely to end up in compost that do not break down in the composting process. Approximately 150 lawn care, or in general weed killing products, have at least one of them as an ingredient.

Aside from knowing exactly what was applied to your substrate, which in most cases of yard waste scavenging isn’t convenient -if even possible, there is unfortunately no way to tell if your substrate has these killers on them before applying to your plants without expensive testing.

Once in the soil, these toxins effect most garden plants, and can remain there for up to three years before breaking down.

……

The ideal ratio is about 30:1 carbon to nitrogen. Until the substrate given attains something near that ratio, there is little the bacteria can do with it. Fungi play a role in breakdown until the carbon finds the necessary nitrogen, or is simply burnt into the atmosphere.

To put this into perspective: wood chips are approximately 200:1, fresh cut grass 17:1, straw about 60:1 depending on what source you use.

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If fresh wood chips or straw are mixed into the soil, all that surface area is placed directly in contact with the soil. If no nitrogen is added, the substrate will pull the available nitrogen from the soil, binding up the available nitrogen, and the majority of chemical processes that give fertility.

This is quite a popular mistake in recent years. I have had several friends and clients ask me to look at their garden, recently converted to no-till and mulch, because nothing will grow. In almost all situations, they have bound up the available nitrogen by neglecting the C:N ratio.

Often the tactic that side steps this binding-up issue is to separate compost pile from garden, turning often to speed breakdown. By now you should have an idea what this is doing: burning up your organic matter into the atmosphere. This is why the nutrients used to increase organic matter should be as balanced in the carbon to nitrogen ratio as possible.

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While Ruth Stout’s method illustrates the effectiveness of growing annuals with nothing but mulch, PASSIVE creates an ecology which includes its own mulch, and so sets it apart. I here use Ruth Stout’s method as proof annuals can be grown with nothing but mulch. I don’t credit her method as the direct roots of PASSIVE though, I credit its roots to a forest model.

*http://soilandhealth.org/wp-content/uploads/01aglibrary/010120albrecht.usdayrbk/lsom.html

*http://whyfiles.org/2012/farming-native-american-style/

*Dirt Farmer’s Dialogue by C.J. Pankimg_2294

This is one of the really important chapter from PASSIVE Gardening explaining why the art of in-system fertility is so beneficial to a truly sustainable, healthy, low-work garden. In the later chapters the book explains Chaos Ratio, one of the most powerful tools for managing system fertility and seamlessly transitioning from yard to garden oasis. I hope to get a post out on this subject soon. Until then, I hope you find this of interest. The photo to the side is another of the photos graciously given to me by Elora L. 

Growing Amorpha

Deep purple petal over bright orange stamens of Amorpha fruticosa melt into green, spotted little crescents of seed. These ripen in the sun to a dark brown, then white-gray and hold. I kept thinking these seeds would fall off, but even in January when I lately picked some, they were tightly attached.

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They have a peculiar ability to sprout without cold -unlike most woody perennials that need months of subfreezing temps. They just need heat above 70 degrees F, and up pop little green leaves. Usually I soak the seed for a couple hours before sowing into flats. I start them in February in some years, March in others, but for my climate these both mean heat has to be provided.


I have to be careful with the dry air of indoor heating to keep the seeds wet, so usually cover with some plastic, and water often. We begin heating a small portion of our greenhouse about that time for garden vegetables, so these seedlings can soak up real sunlight from day one.

They are wise little seeds, and spacing their sprouting time -which outdoors would be a fail-safe against late frost and other catastrophes. For me, it’s a great convenience. Out of one ‘source flat’ as I call it, sprouts pop within three days after planting, but keep popping up for several weeks.

Usually I wait until the first true leaves show before I begin transplanting, then clear the flat of any sprouts with true leaves once a week.

Out of the hundreds I have grown, I find it’s best to start the seeds with potting soil, or compost with good levels of nitrogen. From here I separate into small pots or cell flats no larger than 2 inches across, filled with the same kind of nitrogen rich potting soil they sprouted in.

The heat and rate of drying in smaller pots, where the roots can quickly reach the bottom and be air pruned, has given superior results for me. They still develop very deep taproots once in the ground, but this root pruning while in the pot is helpful -in part because it stimulates more branching of the root system. Planting in extra large pots with nitrogen rich soil, many seedlings rot, and must be replaced two or three times over before each pot successfully grows a plant. On the other hand I have tried planting them this early in nitrogen poor soil, and they make little headway.

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I think this best mimics the situation they would find in nature. Forests and grasslands have a thin layer of nutrient rich, fluffy soil on the surface usually, which quickly becomes clay or whatever the base soil of the area. I want to get the seedlings into nitrogen poor soil to induce nodulation (aka hosting nitrogen fixing bacteria as evidenced by the formation of little nodules). This is spurred on by a lack of nitrogen in the soil. The catch is it takes time for the young plants to find the bacteria and get the symbiosis set up.

Nature’s way seems to be nutrient rich soil at first, then less rich soil as the plant gets bigger, the roots deeper. My contrived biomimicry that gives best results is moving the seedlings once they have filled their small pots and gotten a bit root pruned (not pot bound, as in roots turning back on themselves) into larger pots of whatever size you choose, filled with nitrogen poor soil about 1/3 rd coarse sand. I usually mix nutrient-rich rock powders, such as carbonitite or granite, into this before filling the pots.

Usually I transplant into 4inch pots at this point so they are filled with their roots in a couple of weeks -about the time nodules start to form. Usually this is early June -plenty of time for establishment before fall. Those I don’t get in the ground the first year go into gallon pots by August, which they usually have amply filled by next spring.

I try to avoid keeping Amorpha in pots more than a year. They grow best put in the ground as soon as possible after they have acclimated to the nitrogen poor soil. After years of refining this method, I’ve had transplants pushing 5ft by the end of year one -well on their way to exploding every spring with growth, providing some of the best organic matter for fueling your plant projects.

Where to get the seeds? You might have a plant nearby, which I recommend you snatch some seeds from. Otherwise they’re very affordable, and widely available from Sheffield seeds (my first choice), Oikos Tree Crops (They advertise A. californica, but I’ve gotten their seed -and plants, and compared it against pictures and attributes on the USDA plant database, and they have the name wrong. It’s species fruticosa), or even Amazon if you shop there.

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The Garden of Mortal Tree

Such gardens arrive after some years of trials, where species themselves indicate their preferences, often in defiance of the dictates of literature. It is fortunate indeed that plants cannot read!

-Bill Mollison Permaculture ll

The sun bleeds a hotter light as it sets in the west, and this slope leans into it. It’s face to the setting sun, backed by trees to the east that swallow the gentle light of morning, days begin in shadow that lingers almost to the heat of midday only to be seared by the red light of evening.

The plants grow from these elements. Red-tan brushes of broomsedge grass (Andropogen) speckles the front in tall clusters like an artist’s idle tools, while at the back, messes of honeysuckle cling on piles of logs below scraggly chokecherries. Near the center, in contrast to the lush green Catalpa tree down the hill, stands the skeleton of what was once an apple tree. This is Mortal Tree, the sun scorched slope next to my house that’s becoming a vibrant, lush, productive food forest.

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2013

You might say I’m starting from scratch on this fourth acre of scrubby land; but I don’t plan on doing it alone. I know that every plant and tiny animal living here intends as much as I do to make the place burst with life. The aim of all nature is to create more life. My aim is not to take over, it’s to encourage and strengthen the process already at work. All this through carrying out a design.

Design works for me as the bridge between growth the garden wants, and yield I want. The more my design mirrors nature’s design, the more successful the project will be. In Mortal Tree, that design is a self-sustaining organism, every part interacting to make the whole, every part feeding the others, in care and nutrients, demanding little intervention from me.

Mortal Tree is the center of this design. Paths radiate from this point in fractile, lightning-like arms, and around this point the intensive planting starts -at the “nucleus” of the garden, growing out. The rest I let grow wild, mowing the grass and weeds with the quiet swing of my scythe, gathering excellent mulch. This mulch is fertilizer, moisture retention, and a tool for clearing space my edible plants and fruit trees need. It’s my main tactic, directing free growth of the ecology into my designs of hungry crops.

I’m experimenting with a no-till grain patch, fine-tuning PASSIVE gardening, enjoying the productive beauty in polycultures full of fruit trees and perennial vegetables. Nut and more fruit trees are scattered through the wild growth further down the hill that would perform far better if I had the mulch for them, but there lies my biggest problem:

It’s easy with the desire to power more plantings to overtax the free growth, and damage this delicate ecology. The current design has its limits. Over time, the area of free ecology I harvest for mulch is becoming smaller than the area producing food. What will happen when the need for fertility is greater than the supply?

I watch for what the garden offers. Mirroring the designs of nature in the yields, the design is improving. I’m using running plants to manage weeds, plants that produce massive amounts of mulch in the organized plantings to cycle nutrients and provide cover that protects the ground, and nitrogen fixers that can meet high demands of the hungry production plants. Slowly but surely, the two ends of the equation -wild carefree and productive, labor intensive -are drawing close.

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I have to remember design is only so good as the nature that informs it. Nature is only so good as the life that fills it. No matter how refined my designs become, they are still nature. They house the light that bleeds from the sun, stretching up as growing plants, spuring on change in every aspect. Sometimes that change is good, sometimes not so good; but with the hope of achieving an ever more harmonious design to harness this light, through the changes each day brings, this garden, and its designer, lean into it.

For those of you new to this blog, “The Garden of Mortal Tree” used to be my About page, but after placing it in the Visual Archive, it fell out of existence. This is a major overhaul of that page that better reflects the present Mortal Tree. 

Ground cover infographic

Sunchokes is number ten in the Top 10 ground covers for food forests series I started a while ago. To help put everything into perspective, I made an infographic.

Scaled Infographic

The ground cover branch on the visual archive has links to all the original posts if you would like to find out more.

In general, the layout from right to left are ground covers that do well in established beds, to plants that simply wipe out other plants, and are excellent for bed building.

If you’re wondering how to share this on your own social media pages, try the share buttons below the post. I have most social platforms available for sharing.

I’m using the the term “dynamic mulch” to describe the ground covers, because ground cover has a rather flat connotation. Most gardeners think of them as useless plants that do nothing better than excessively clog the soil surface. They have much more potential.

I’m suggesting these plants as tools, not just for blocking weeds, but actively removing weeds, making use of otherwise useless plants through careful combinations, getting food from ground cover, improving the quality of the soil, and feeding other plants through their  well calculated use. With the correct use, resulting from a more dynamic comprehension of plants, we are suddenly on the brink of an entirely new level of sustainable, productive, passive agriculture and gardening.

The infographic, and the Top 10 series are part of a bigger surprise to which some of you closely following me have probably caught on. It should be ready before the end of the month. My apologies for making you wait, but I assure you, it will be worth it.

Update: It’s launched! Mastering the Growing Edge is live if you want to check it out. 

 

Sunchokes

Sunchokes, or Jerusalem artichokes (Helianthus tuberosus) are not so much a stable ground cover as masterful bed builders. They don’t just block, but obliterate grass lawn, taking the place of bed building mulch if handled correctly.

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Its home is the American prairie biomes, where it stretches for sun among massive grasses and other very competitive plants. Placing it in the standard lawn, full of short European grass species, or even an overgrown field is like releasing a saber tooth tiger into a playpen with modern house cats. It’s a brute.

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It begins by pumping nutrients from deep in the soil to power billowing clouds of leaves rambling up sometimes 15ft tall stems. At the end of the season, less fortunate species smothered below, it sucks all the nutrients gathered in its stems safely into the underground for storage in its edible tubers. Every year it sends out runners, some species more aggressive than others. One variety, “Supercluster,” Oikos Tree Crops sells is supposed to be well behaved, but most are decidedly imperialist, surging several feet out in all directions every year as resources allow. As long as it fills its nutrient reserves every year, the size of the open field it inhabits is its only limit.

To unleash the beast, get a bucket of the tubers in fall, and with a shovel, make little slits in the ground about one foot apart, inserting the tubers deep enough they aren’t exposed, and walk away. The days of the nearby plant residents are now numbered.

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Sunchoke sprouts

Don’t worry next spring when the tubers don’t sprout early. Sunchokes don’t like frost, and wait until late in the spring to pop up their furry little heads. I have planted these into completely unamended yards where lawn grass wasn’t even happy, but the ‘chokes still grew well. Results of removing grass and patch expansion are best if the patch is left a year or two before harnessing it for actual bed building.

It is very difficult to put strong beasts like sunchoke to use with brute force. You have to outsmart them. This you do by pinpointing their one weakness, and suddenly you have them in the palm of your hand. Because exploiting this weakness is so effective, I must go begging to my friends for new tubers in fall because I have accidentally wiped out my propagation patches.

I have quite a hard time removing their disbelief. Sunchokes are otherwise known in the gardening world as hard-to-chokes, which is why I don’t recommend digging up your newly cleared bed to remove the plants. I have never seen this work. Though you could swear all the tubers are removed, the plants always return. Some varieties were selected from patches sprayed with roundup -and lived.

Biologically, sunchokes are impenetrable tanks of ecosystem war, and have the potential to become the worst weeds for your new planting. I would not in any way suggest their use anywhere near your garden if it wasn’t for the one gap in their armor.

You see, ‘chokes go all out to ensure they get as tall and bushy as they can. Having invested every last bit of stored food from their tubers into the above ground stems, it’s as though the plant stood on top of the ground and could just be gathered up as a pile of stems to be placed somewhere else.

I discovered this one year when a particularly healthy, bushy specimen blew over in a windstorm, partially uprooting it. I broke the plant off, cracking up the lush growth to mulch the bed, expecting to see the plant return next spring. I was surprised when next year there was nothing.

Later, in a very dry year, sunchokes were the most lush thing in my food forest to feed my rabbit. She liked them, so I would snap off the growing tips, let the plants branch off to the side, and snap of the side branches to make rabbit happy. I started this when the plants were about 5ft tall, leaving about 4ft stems that in turn could return their nutrients to the tubers. Nevertheless the plants that normally topped ten foot came up the next year anemic, and dwarfed, barely reaching three feet.

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A young, thick patch of sunchokes.

The exact point in time when they seem most vulnerable is just before bloom at a certain time when the growth of leaves changes from being as tightly stacked and lush as possible, to becoming a bit more sparse, the stem getting harder, and the flower buds showing up quickly afterward.

Flowering, and in fact most dieback processes of plants, are accompanied by the production of ethylene gas, which in the ‘chokes I would guess also begin the back flow of sugars in the leaves to the more complex carbohydrates in the tubers, and oxidation of the stem fibers, making them woody and brittle. Cutting ‘choke down just before signs of this hormone’s activity seems to be their secret weakness.

In my climate, this means cutting the plants off about a foot tall in July. It is helpful to leave some stem to make lots of side shoots. A second cutting, about a month later, to remove the side shoots and what’s left of the stem, perhaps even some roots, in my experience, weakens the plant beyond recovery.

Some gardeners I have explained this method to ardently insist I’m wrong. They cite their own experience of mowing sunchoke patches for two years and the ‘chokes just growing up over and over again.

I have gotten excellent results with the method in my experience. That they were only a few years old unlike the decades old patches in these other reports may play a role. I doubt it though. On the one plant that blew over I saw a very large clump of tubers which I left in the ground.

Perhaps it is more a question of the plants adapting to growing less each time they are cut back, developing a sort of stunted homeostasis. They may have grown more miserly with their output of stored sugars. I think it is imperative that you allow the roots to put maximum growth above ground, then sap the last little bits of strength out of them with subsequent cutting.

Be cautious of course in planting the sun chokes and letting them run wild. If you closely follow the details I have given, I am confident you can get very similar results. Feel free to let me know how it goes.

Hacking off all this biomass leaves a lovely, thick mulch for planting into next spring. Grass is usually gone by this time. Adding some grass mulch early next spring ensures establishment is smooth the next year, but very little is necessary compared to normal bed building. If used well -in conjunction with the other ground covers, sunchokes are a real workhorse, with the potential to carry your efforts to the blissful state of an established, productive, ground thickly covered food forest.