End of Year Punch List

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Winterizing

My carpenter friends, near the end of their projects, have their “punch lists” to serve as reminders what odds and ends still need to be done. I similarly have a punch list for my gardens, a punch list that marks the end of the growing season, a list of what (I hope) will get done before I drop the first seeds in the ground next spring.

(No need for an entry on the punch list to have the ground ready for that seed. Beds have been mulched with compost and are ready for planting.)

Hardy, potted plants, including some roses, pear trees, and Nanking cherries, can’t have their roots exposed to the full brunt of winter cold.plants, almost ready for winter I’ve huddled all these pots together against the north wall of my house but soon have to mound leaves or wood chips up to their rims to provide further cold protection.

I’ll save some leaves to protect strawberry plants. Their insulating blanket won’t go down until weather turns colder, with the soil frozen an inch deep, or else their evergreen leaves will rot beneath the leaves.

I’ll be digging out or cutting down a number of woody plants, some even 10 or 20 years old, in the next few days or weeks to make way for better ones. (Ruthless!) Anna hardy kiwifruit, short for Annanasnaya, grows very well but ripens a bit late and doesn’t have quite as good flavor as my other varieties: Geneva, MSU, and Dumbarton. So out it goes. The same goes for Mars, Concord, and Cayuga White grapes; their flavor isn’t up to snuff. And Halle’s Giant, Lewis, and Clark filberts, except that their shortcoming is their susceptibility to the disease filbert blight.

A 5 gallon bucket filled with equal parts sifted compost and soil will be ingredients for any potting soils I’ll need for seedlings from midwinter on. For the finished potting soil, I’ll mix in another 5 gallon bucket with equal parts peat moss and perlite.

One sunny day soon I’ll lean pitchforks, rakes, and shovels against the garden carts and brush them with linseed oil diluted with equal parts paint thinner. Tool handles, readiedAfter the handles have been wiped down, 10 minutes later, they’ll be in good condition for at least another year.

Pruning hardly needs to be added to my punch list. I’m reminded about this annual job every time I look out the window or walk out the back door.

Deer at Bay

Protecting some of my trees and shrubs from animals doesn’t make it to the punch list either — because it needs to be done by now! Young pears (Concorde, Abbe Fetal, and Lady Petre) and apples (Liberty, Macon, Hudson’s Golden Gem, Ashmeads Kernel, and Pitmaston Pineapple) already have their hardware cloth and/or plastic collars protecting their bottom couple of feet of growth.

What about branches higher up, the ones the deer would find tasty. Thanks to fencing at both the north and south ends of my property, a couple of Deerchaser battery-powered repellants, two outdoor dogs, and vibes from me, deer rarely venture on site. But, as I discovered this past summer, just one deer on just one night can do a lot of damage to a young tree.

So this year I’m putting 5 foot high by 3 foot diameter cages of 2×4 welded wire fencing around my young apple trees. Deer protection, high fenceThe pear trees, close to the house, don’t get bothered. The problem with such cages is that it’s a hassle to weed or prune within the cage — both very important for young trees. Two metal stakes, each a 5 feet length of EMT electrical conduit, woven into part of fencing on opposite sides allows me to slide the fence up and down to get inside a cage to work. These trees, which are replacing my very dwarf apple trees, are semi-dwarfs which can fend for themselves once they get above 5 feet. Then I’ll remove the cages.

Memorables, for Vegetables

And now, some notes for next season’s vegetable garden . . .

Reduce the number of pepper varieties to those that perform and taste best here: Sweet Italia,

Italian Sweet peppers

Italian Sweet peppers

Carmen, and Escamillo. And stake them right from the get go.

Plant a greater proportion of tight-necked onions, such as Patterson, New York Early, and Copra, to avoid bacterial diseases.

Plant less bok choy; no need to be inundated by them just because the space is available.

Keep an eye out for whiteflies and caterpillars on cabbage family plants; act sooner rather than later to keep them in check.

Plant more Shirofumi edemame; 30 feet of bed should be about right, they need a long, hot season.

Try King of the Garden Limas again, but plant even earlier indoors. 

Get Out!

Okay, time to get outside to work on my punch list before any snowfall limits the possibilities.

Autumn’s Leaves

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Wherefrom the Colors?

Autumn is a season when New York’s Hudson Valley, and much of the Northeast, unfolds in all its glory. Not this autumn, though. What’s going on in the leaves this year? Is there anything I can do about it?.

Chlorophyll is what makes leaves green, but hidden behind that green, all season long, are some of autumn’s colors. Chlorophyll must be continually synthesized for a leaf to stay green. The shorter days and lowering sun of waning summer are what trigger leaves to stop producing chlorophyll and let some of the other colors come to the fore.

Yellows and oranges, no longer masked by chlorophyll green, come from carotenoids, which help chlorophyll do its job of harvesting sunlight to convert into plant energy. Thank carotenoids for the warm, yellow glow they give to gingko, aspen, hickory, and birch leaves.

Gingko in fall

Gingko

Tannins are another pigment, actually metabolic wastes, that all summer are hidden by chlorophyll. Their contribution to the fall palette are the season’s subdued browns, notable in some oaks and enriching the yellow of beeches.

Because leaves harbor carotenoids and tannins all summer long, nothing particular about autumn weather should either intensify or subdue their autumn showing. I’m blaming this autumn’s poor show on the season’s extended warm weather. It was slow to arrest chlorophyll production and induce leaf drop. A couple of hard freezes brought the whole works to a screeching halt, so instead of showy yellow leaves, my witchhazel’s stems are now “adorned” with wrinkled, green leaves frozen in place. Other trees and shrubs suffered a similar fate, and their frozen, green leaves are dropping without any fanfare.

Autumn color also spills out reds and purples, most evident in red maples and some sugar maples, scarlet oak, sourwood, blueberry, and winged euonymus. Those reds and purples come from anthocyanins, yet another pigment. Except for trees like Purple Fountain beech and Royal Purple smokebush, whose leaves unfold dusky red right from the get go in spring and remain so all season long, in most leaves anthocyanins do not begin to develop until autumn.

Sugar maple in fall

Sugar maple

Anthocyanin formation requires sugars, which accumulate best with a combination of warm, sunny days to maximize photosynthesis, and cool, but not frigid, nights to minimize nighttime burning up of accumulated sugars. A cloudy, rainy autumn means less red because less anthocyanin is formed, and any that does form is diluted. Warm nights, such as characterized much of autumn, reduce anthocyanins by burning up much of each day’s sugar production. The result: Less reds and purples, as evidenced by the blah color of this year’s blueberries in my garden and maples in the forests. 

Can We Make the Color Better?

Is there anything we can do about the autumn show?

Here in the garden, my role in the autumn show is to plant trees genetically programmed for good autumn color. Colorful trees and shrubs include goldenrain tree, hickory, ironwood, and black tupelo. Certain varieties within each species might pack a bigger wow than the others. Hence the spicebush variety Rubra, brick red in fall, or Wright Brothers sugar maple, whose leaves become a mottling of gold, pink, orange, and scarlet. Other especially colorful varieties include Autumn Flame and October Glory red maple, Commemoration and Legacy sugar maple, Autumn Gold and President gingko, and September Beauty Chinese sumac.

Japanese maple in fall

Japanese maple

Despite this autumn’s weather, fothergilla and Japanese stewartia both managed to look as flamboyant this year as in others. If you believe that, going forward, autumn weather is going to bring on less spectacular color, choose varieties that originated from more southerly latitudes.

fothergilla, fall color

Fothergilla

Stewartia in fall

Stewartia

And if warmer autumns are going to be one effect of global warming, we can help the autumn show beyond our gardens, in the forests, by traveling less or more efficiently, using less plastic and other petrochemicals, eating more locally grown food and less farmed meat, investing in energy-efficient appliances and renewable energy, etc. (For more, see https://www.conserve-energy-future.com/stopglobalwarming.php.)

Back in the garden, my other role in ratcheting up the reds and purples is to make sure that leaves bask in light. I plant a tree where light is adequate (for that species) and, as necessary, prune so that branches don’t shade each other. Street lights don’t count as light, and actually have a negative effect, disrupting the signal that days are getting shorter and it’s time to slow chlorophyll production.

Lee’s New Book!!

Knowing something about how plants work can make gardening more interesting as well as make the landscape prettier and vegetable gardens more productive. And that’s the thrust of my upcoming book, The Ever Curious Gardener: Using a Little Natural Science for a Much Better Garden, to be published in early spring of 2018 but available for pre-order through Amazon or, signed, from me.The Ever Curious Gardener

Some Fruits and a Ornamental Veggie

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Happy Blueberries, Happy Me

My sixteen blueberry plants make me happy, so I make them happy. (They made me happy this year to the tune of 190 quarts of berries, half of which are in the freezer.) I don’t know how much work bearing all those berries was for them, but I just finished my annual fall ritual of lugging bag upon bag of leaves over to the berry patch to spread beneath the whole 750 square foot planted area.Blueberry fruit cluster

I don’t begin this ritual spreading until the blueberries’ leaves drop. Then, old leaves and dried up, old fruits are on the ground and get buried beneath the mulch, preventing any disease spores lurking in these fallen leaves or fruits from lofting back up into the plants next spring. Rainy, overcast summers or hot, dry summers or any weather in between — my bushes have never had any disease problems.

In past years, I did do two things before spreading that mulch. First, I spread some nitrogen fertilizer: my universal pabulum, soybean meal, at the rate of 2 pounds per hundred square feet. And second, I spread some sulfur, at about the same rate, to keep the soil acidic. After many years of mulching, the soil has built up an ample reserve of organic nitrogen — evidenced by the plants’ 2 to 4 feet of new stem growth each year. So I no longer add extra nitrogen.

With all those years of mulching, levels of decomposed and decomposing soil organic matter have greatly increased the soil’s buffering capacity for acidity. That means that I no longer have to pay such close attention to acidity, so I rarely add sulfur anymore.
Sammy also likes the mulch

Sammy also likes the mulch


Besides all these other benefit, the mulch has created a soft root run that retains moisture, just what blueberries’ thin roots really like. Fruit is borne on shoots that grew the previous season, so each year’s vigorous new growth translates into a good crop in the offing for the next year.

New York Bananas

Although the crop seemed paltry at first this year, by the time autumn came around, pawpaws were in abundance. This uncommon fruit is the northernmost member of the tropical custard apple family, and the fruit does indeed taste very tropical — a flavor mix of banana, mango, avocado, and vanilla custard — even though it’s easy to grow and native throughout much of the eastern U.S..Pawpaw, like crème brûlée

Two trees would be adequate for most households; I have about 20, just so I can learn more about them and their individual differences. That makes for a lot of pawpaws! (I test market most of them.)Row of pawpaw & black currant

Pawpaw fruits are very variable in both size and flavor even among the branches of a single tree. One year, I tried thinning the fruits to see if that would increase size of remaining fruits, as it does with apples and peaches. Pawpaw has a multiple ovary so each blossom can give rise to as many as 9 fruits. The small fruits are hard to see because they match so closely the green color of the leaves, so I didn’t thin as many as I had hoped. That said, at season’s end, fruits on thinned clusters seemed no larger than fruits on unthinned clusters.

Beginning around the middle of September, I began harvesting the first fruits. I picked some up from the ground and picked some softening ones from the trees, all of which continued through October. By putting them immediately in a cooler at 40°F, I still had good fruit into the middle of November.

Scarlet Runners

Every year I fear that at season’s end I’ll remember something I forgot to plant. This year it was scarlet runner beans.Scarlet runner bean flower

Despite the “bean” in the name, I’ve grown this vining bean, as do most people, primarily as an ornamental, for its scarlet blossoms. I occasionally eat the fat, hairy, yet delectable green beans.

Every year I collect some of the matured black and pale purple, calico seeds for replanting the following year. One year, I decided to cook up some of these seeds and taste them. Scarlet runner bean seeds are quite tasty (and, I learned prior to eating, nonpoisonous). Scarlet runner beans
 
Next year I’ll remember the scarlet runners. My yard will be aflame in scarlet flowers and, because the plant is pest-free  —  even to Mexican bean beetles — I expect to reap a bumper crop of beans.

Leafy Exercises

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A New Exercise: Un-Rei-King

A few years ago I wrote that, among the many benefits of gardening is the opportunity it offers for varied, productive exercise. At that time I highlighted rei-king (ray-KING). Now, let’s add un-rei-king to join rei-king, zumba, cardiofunk, and other ways modern humans build and maintain sleek, fit bodies.Leaf bags with pawpaws

In fact, many people, including couch potatoes and nongardeners, practice rei-king this time of year. You can see them practicing this sweeping motion on their lawn amidst gathering piles of leaves.

Un-rei-king is a more rare form of exercise, of which I am a practitioner. Rei-kingers gather those piles of leaves that are a byproduct of their exercise into large bags, then muscle them curbside. I gather said bags, muscle them gardenside, and launch into un-rei-king. That is, I employ a similar motion to rei-king, except more jagged and with a pitchfork, spreading the leaves once I have freed them from their baggy confines.

Feeding the Soil to Feed the Plants

Exercise aside, my goal is to blanket the ground beneath one row of pear trees, a large bed of gooseberry bushes and grapes, and another long row of pawpaw trees and blackcurrant bushes with 6 to 12 inches of autumn leaves. That fluffy blanket will hold autumn’s warmth in the soil long after bare soil has frozen solid to a few inches depth.

I have to practice un-rei-king every year in November because by this time next year, that leafy blanket will have pretty much evanesced into thin air, literally. Leaves are composed mostly of carbon, hydrogen, and oxygen which becomes, over the course of the year, carbon dioxide and water vapor.

All this may seem like wasted effort (except for the exercise), but it’s not. The transmutation of leaves to carbon dioxide and water happens as bacteria, fungi, worms, and other soil organisms gobble up the leaves. Mostly, these creatures are beneficial, helping plants to fight off pests.

Leaves are mostly, but not only carbon, hydrogen, and oxygen; also contained therein are a slew of minerals needed by plants. In addition to feeding soil life, as the leaves decompose they’re also fertilizing the ground. More than that, natural, organic compounds are being formed that help make minerals already in the soil more accessible to plants.

All this living activity also releases into the ground other natural, organic compounds that aggregate soil particles to create pores for good aeration as well as to act spongy to help the ground, at the same time, hold moisture.

All of which is to say that after years of un-rei-king, my soil is soft, fluffy, moist, and very much alive. The pear trees, gooseberry bushes, etc. love it.

Uh-Oh, Mice

Meadow mice also enjoy the fluffy blanket, beneath which they can nest — and feed on plant roots and bark! So as I lay down that blanket, I’m also putting an 18-inch high cylinder of hardware cloth or some commercial wrap around the bottom of the tree trunks to fend off the mice.

I’ll also keep the leaves a few inches back off the trunks to keep mice at bay and avoid rotting of the trunk. Such precautions are unnecessary for shrubs, whose fresh supplies of stems that grow each spring at ground level can replace any chewed ones. (That’s why they are shrubby.)Tree protected with plastic spiral

And Some Leaves — For Next Year

Not yet finished with leaves. Every autumn a local landscaper dumps a truckload of vacuumed-up leaves here. On that pile I grow watermelons all summer long. By now, the leaf pile has about half-decomposed into “leaf mold” which is pretty much the same thing as compost. Except rougher, because it’s not yet in the final stages of decomposition.Leaf pile

Being richer in nutrients than freshly fallen leaves, leaf mold is just the ticket for loading into a cart for mulching some special plants: a young chestnut tree, filbert bushes, and semi-dwarf apple trees. Plus, it brings along all the aforementioned benefits of raw leaf mulch.Mulch, leaf mold on pear
Spreading leaf mold

NOTE: I’m not sure if the comments section is working on this page, so, if you will, please some of you readers write a comment so I can see if a fix is needed. Thanks.

Winter’s Comin’

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Ready of Ol’ Man Winter

October 31st, was slated to be the first hard frost of the season, later than ever. That afternoon, I went down my checklist of things to do in preparation for the cold.

Drip irrigation needed to be shut down so that ice wouldn’t damage the lines. I opened up the drains at the ends and at the low points of the main lines. I also  opened up the valves on all the drip lines so water wouldn’t get trapped anywhere. Some people blow out all the lines with compressed air.

The only parts of the drip system that ever need to be brought indoors are the parts near the spigot: the battery-powered timer, the pressure reducer, and the filter.

But I wasn’t yet finished with water. All hoses got drained, with any sprayers or hose wands removed from their ends. Hoses were also removed from frost-free hydrants to let the water drain freely out their valves. (The hydrants are frost free because water drains and enters the hydrant’s pipe four feet below ground, where temperatures, even in winter, remain at a balmy 50° F. or so.)

Tropical plants indoors

Tropical plants indoors

Moving on to plants . . . Tropical houseplants had all been brought inside, but outside still remained subtropicals, including some potted figs, pomegranates, bay laurel, olive, and an angel’s trumpet (Brugsmansia). Subtropical plants can tolerate, even enjoy, temperatures below freezing, even down as low as 10°F. for some of them. My pomegranates, the varieties Kazake and Salavatski, both from western Asia, are reputedly cold-hardy to below 0°F! All these subropicals will enjoy the great outdoors for a few more weeks, barring a drastic change in the weather.

Some vegetables remaining out in the garden can likewise weather cold weather well. Just to make sure, though, I laid “floating row covers” over beds of endive, mustard greens, and lettuce. These diaphanous coverings keep plants beneath them a few degrees warmer while letting light and water filter through. The soil retains enough heat to protect roots of turnip and winter radishes, which are further protected beneath their leafy canopies.

I forgot to pick and eat Sungold tomatoes, which would be done for after a freezing night. Any red peppers still left on the plants had been harvested; those plants would also be dead on the morrow. I can’t complain; the Sungolds and the peppers bore well and for a longer time than ever before.

The final cold prep was to check the greenhouse, making sure window, sidewalls, and doors are closed up tight, and the heater is functional.

I’m ready for Ol’ Man Winter.

Not So Cold

The morning after: The cold turned out to be not nearly as dramatic as expected. A little before sunrise a cloud cover crept over the sky, tucking in the earth’s warmth rather than letting it radiate out to a clear sky. The low temperature for the night was 28°F. Even the pepper and tomato plants had toughened up enough by then to tolerate that amount of cold. Not to keep ripening good-tasting fruit, though.

Temperatures aren’t predicted to drop near freezing for many days after that night, but I didn’t consider my scurrying around to move or cover plants, and drain water lines, to be wasted effort. Endives and other greens still out in the vegetable garden transpire very little water in cool weather, and even less so when covered with floating row covers.

The only watering needed from then on would be of the compost pile, easily accessible from one of the frost-free hydrants and a short length of hose, connected as needed.

“Trip” to the Mediterranean

Greenhouse temperatures dropped only to 40°F, the temperature at which I set the thermostat. Cloudy days in there are like today are akin to winter days along the Mediterranean: Very cool and somewhat dreary. On sunny days, I open the greenhouse door to bathe in a tropical paradise of sunlight, heat, and high humidity, with lush plants of lettuce, mustard, arugula, celery, chard, claytonia, and parsley blanketing the ground. Greenhouse fig and greens

Fig trees in the greenhouse have slowly eased their way into dormancy. I hurried them along by lopping them back — except for the few branches still ripening a few fruits. Those figs, ripening in low sun and cooler weather (even in the greenhouse), aren’t as tasty as those of summer and early autumn. I wonder how tasty November figs are in Italy and Greece?

 

The Morning After

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Endive Galore

I don’t know if was a case of green thumbness or the weather, but my bed of endive is now almost as frightening as a zucchini planting in summer. The bed, 3 feet wide by 20 feet long, is solid green with endive plants, each and every plant looking as if it’s been pumped up on steroids.Endive bed

I sowed seeds in 4 by 6 inch seed trays around August 1st, “pricked out” the seedlings into individual growing cells filled with homemade potting soil about a week later, and  transplanted them into the garden in the beginning of September. The bed had been home to one of this summer’s planting of sweet corn (Golden Bantam), a heavy feeder, so after clearing the corn I slathered the bed with an inch depth of pure compost.

Perhaps the vigor of these plants also reflects the extra space I gave them. In years past I would cram 3 rows into a 3-foot-wide bed. Because we never can eat all the endive I plant, this year I planted only 2 rows down the bed. Hating to see any wasted space in the garden, I set a row of lettuce transplants, now eaten, up the middle of the bed. The endive plants have opportunistically expanded to fill whatever space they can.

Fortunately, there’s no rush to eat all that greenery. The bigger they get, the more the endives’ leaves fold in on themselves to create blanched, succulent leaves of a loose head. Upcoming cooler weather also brings out the best flavor in these plants. After being covered with clear plastic, which I’ll support with a series of metal hoops, the endive should remain flavorful for weeks to come. That’s assuming the muscular plants can be fit beneath the hoops and plastic.

I do have a Plan B: Just as zucchini bread was invented as a way to deal with zucchini excess, white bean and escarole soup might be just the ticket for my escarole “problem.”

Floating Row Cover

Another bed, planted from seed sown on August 15th, is also full of greenery. Not nearly as dense, though, which is okay because the bed is planted for its roots. Up the bed run 2 rows of turnips and one row of winter radishes.

One year I couldn’t see the turnip and radish bed because I had hidden it beneath a “floating row cover.” Floating row covers, which let water, light, and air pass through, are so lightweight that they can be just laid on top of the ground to be pushed up by growing plants. That year, I made it even easier on my plants by propping the covers up with the same kinds of metal hoops that will hold the clear plastic over the endive bed once the weather turns cold.  The row of hoops propping up the plastic creates a tunnel that, every year, looks like a sleeping, giant, white caterpillar. Garden view, the morning after

The purpose of the floating row cover was to block the root maggots that typically tunnel into many — too many — of my turnip and radish roots. Beneficial nematodes are supposed to help deal with that problem, but have been — in my experience, at least — ineffectual.

This year, for no apparent reason, most of the turnips and radishes are free of maggot attack.

A View From Above

Every morning I look down from my second story bedroom window at the garden. Closest in view is the bed of endive; looking further back, my eyes come to the back of the garden, where a row of tall, thin evergreens stand sentry to block the view of the compost piles. Those evergreens, spires of the Emerald (also known as Smaragd and Emerald Green) variety of arborvitae, are among the commonest of landscape plants. I like them.Garden view from bedroom window

The trees are at their upper limit of 15 feet high and 5 feet wide, and create a perfect screen without needing too much elbow room. They’re also perfect for injecting a bit of civility to the more frowsy gooseberry bushes and overgrown (at least till I prune them) grapevines in the foreground. Some arborvitaes turn a muddy green in winter but Emerald keeps its vibrant green color.

To the north, just beyond the garden is another row of spires, five plants of a juniper variety called Gold Cone. Each plant will mature to 10 feet tall with a spread of a mere 3 feet, just enough to hide my Cool Bot walk-in cooler, now home to boxes of apples, pears, pawpaws, cabbages, carrots, and persimmons. Livening things up is the gold coloration at the tips of Gold Cone branches.

 

Timing Gone Awry But Composting On Schedule

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Time Change

Much of gardening is about timing — getting tomato plants in the ground early enough for a timely harvest, but not so early that transplants are killed by a late frost; checking that there’s enough time following harvest of early corn for a late planting of turnips, etc. So, when I began gardening, I read a lot and took lots of notes on what worked here in Zone 5, and eventually compiled everything into a neat table of when to do what.

I figured, with that table, that I was all set and would no longer have to respond to a gut impulse to plant peas during a freak warm spell in late February. Or to keep reading seed packets and counting back days to maturity to compute if there was still time, or it was too early, to plant a late season crop of endive.

Not so! In the few years I have gardened, which, though decades, is infinitesimal in geologic time, the climate has changed enough for me to have to shift those dates I so carefully figured out. No longer must I wait until the end of May to sow okra, squash, and other vegetables; the ground warms sufficiently to induce them to sprout a couple of weeks earlier now. No longer does a hard freeze strike tomato vines dead by the end of September. As I write, it’s the end of October and last night the first frost — a light frost — crept into the garden; later today, though, I’ll be picking ripe Sungold tomatoes.

Some perennial plants that, in the past, usually died back to the ground each winter, then resprouted in spring, no longer die back. Yellow groove bamboo, for instance. Nowadays their leaves stay green through most winters, which translates to taller and thicker canes. Crocosmia corms would hardly flower in years past; nowadays I don’t bother to dig up the corms, which flower and spread prolifically.

Taking Care of My Little Pets

Some things, gardenwise, are timeless or, at least, not time sensitive. The changing daylength throughout the year, for instance. And composting.Compost bins

Although I feed my compost “pets,” that is, all the micro- and macroorganisms living and working the compost pile, all season long, this time of years those pets have a veritable banquet. In addition to the usual trimmings and scraps from the kitchen, beds are being cleared of corn, beans, okra, cucumbers, and all those other summer vegetables that are petering out.

I’m also having a lot of fun weeding. Yes, fun. Yes, weeding. (You might wonder why the author of the book Weedless Gardening has weeds. I grow a lot of fruit trees, shrubs, and vines, and some flowers, in addition to vegetables. I have too much garden. I can’t help myself. But everything is Weed-less.)

The ground has enough moisture in it so weeds are easily pulled. On my knees, I pull at a clump of Creeping Charlie, and creeping vines extending for 2 feet in all directions move up and out of the ground. I grab a clump of quackgrass and, if I lift carefully, a couple of feet of its creeping rhizome that attempts to extend its reach releases from the ground.

Quackgrass with runner

All this goes into the compost pile along with some horse manure and bedding, some hay I scythe from my field, and occasional sprinklings of soil and dolomitic limestone. As I layer these materials, I pay attention to their ratios of carbon and nitrogen, the two main feedstuffs of my compost pets. Old plants are relatively richer in carbon, young ones in nitrogen. Manure is rich in nitrogen, the bedding (wood shavings, which is old plants) in carbon. Too much carbon, and decomposition is sluggish. Too much nitrogen, and the pile gets smelly.

I also consider how fast ingredients might decompose. Wood shavings, for instance, are high in lignin, which slows decomposition no matter what their ratio of carbon to nitrogen.

The Little Guys Are (Usually) Thirsty

Two things that often slow composting are heat loss and insufficient moisture. Small compost piles lose too much heat; the critical mass for good heat retention is about a cubic yard. The bins into which I pile ingredients insulate the edges to further retain heat.

A lot of water is needed to seep way down into a pile. Rather than keep trying my patience holding a hose wand, a couple of years ago I purchased a small sprinkler and attached it to some plastic pipe so it fit neatly on top of my compost pile. A pressure regulator (usually used for drip irrigation systems) keeps incoming pressure constant so I could adjust an inline valve to make the spray consistently reach just to the edge of the pile. Twenty to thirty minutes gives my compost pets a good drink.Compost sprinkler

A long-stemmed compost thermometer is my final check that all is well. The piles typically reach 150°F. Compost piles don’t need to get that hot; more time composting also does the trick. Any pile of organic materials eventually becomes compost..

I Clothe The Ground

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Sowing My Oats

Whew! Just made it under the wire. Sowing cover crops, that is. (Cover crops are plants grown solely to improve the soil.)

With the vegetable garden still filled to the brim, now overflowing with cabbage, kale, mustard, arugula, lettuce, Chinese cabbages, and radishes, with even corn and peppers still yielding well, where am I going to find room to plant a cover crop? Despite the cornucopia, some plants — the corn, peppers, and other warmth-loving vegetables — are on their way out. As they peter out, it’s too late in the season to sow any more radishes, lettuce, or any of the other cool season crops; there’s not enough time or sunlight for them to mature.

No reason to leave a recently cleared bed of early corn, early beans, or okra bare, so I planted those beds to a cover crop. Problem is that after a certain time of year, there’s not enough time or sunlight for even a cover crop to grow enough to do some good for the soil. My date for that is early October; further south it will be later; further north, earlier.

Right after clearing a bed of spent vegetable plants, I go over it carefully to remove every weed. Then I smooth the ground and give it a thorough watering to give the cover crop plants a quick start. What plants? Oats.Oat cover crop sequence

I grow oats as a cover crop because I never till the soil in my vegetable beds. Oats loves the cool weather of fall and early winter, quickly sprouting into a lush, green carpet. By February, though, that lush carpet turns tawny and flops down on the ground, dead. Come spring, I could plant right through that mulch. Or, it could be rolled up with a grass rake, or just pulled off barehanded; removing it speeds soil warming.

Other good cover crops for no-till gardens are barley and, to also add nitrogen to the soil, peas. Gardeners who till their ground usually plant rye grain as a cover crop. It survives winter, then grows with vengeance in spring; hence the need for tillage.

Back to that watered bed. I sprinkle the bed with oat seeds, then top the bed with an inch of compost. Green sprouts poke through that compost blanket in a couple of days or so.Oats sprouting

Is It Worth It?

Planting a cover crop in a bed that gets an annual dressing of an inch depth of compost may seem like “carrying coals to Newcastle.” After all, one potential benefit of cover crops are that they add organic matter to the soil. That inch of compost is already organic matter, and plenty of it.

In fact, I have never observed any better growth from a bed that has been cover cropped over one that received only the compost blanket. And for some reason, the cover cropped beds always seem to have more weeds in them in spring — surprising, since a cover crop should be shading or pumping out natural chemicals to suppress weeds! Perhaps some weeds insinuate themselves in fall in among the oat plants, where I can’t see them. My plan, this spring, is to cover some of the cover-cropped beds for a week or so with a black blanket (recycled billboard tarp, available online) which will warm the ground up quicker and snuff out potential weeds.

Even cover crops’ potential benefit of enriching the ground with organic matter doesn’t always pan out, and surely not the way I plant them. Organic matter is largely carbon. Young plants are relatively rich in nitrogen and poor in carbon, a ratio that reverses as the plants age. A young cover crop, then, doesn’t add organic matter to the soil; its excess nitrogen could even contribute to the oxidation and loss of organic matter. Oats planted this time of year grow lushly, but never mature enough to tip the scales in that early ratio of nitrogen and carbon.

(I dive into more depth about cover crops in my book Weedless Gardening.)

Cover Crop Brings Many Benefits

Still, I’m planting a cover crop — for some of its other benefits.

Rain and snow in the coming months can wash nutrients down and out of the soil. The oat roots, as long as they are alive, can suck up those errant nutrients and keep them nearer the surface for next season’s vegetable plants. Cover crops also soften the impact of rain pounding on the soil, preventing erosion.

Oats in January

Oats in January

As roots of cover crop plants push through and ramify in the soil, they nudge soil particles around to improve tilth (structure of the soil) making it crumbly, all to the liking of plants. These roots also team up and nourish other organisms, such as fungi, that also improve tilth. Channels of varying size are left in the soil as roots die off and rot away. Such channels provide easy conduits for new roots, as well as for air and water.

And finally, I’m planting cover crops for myself. With green fading from the landscape into reds, yellows and tawny browns, it’s refreshing to look upon the green carpet rather than bare soil in the vegetable garden.Oat cover crop

It Ain’t Over ‘Til It’s Over, and Pears

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Whoosh!

Whew! How quickly this growing season seems to have scooted by. I am putting the last plants of the season into the vegetable garden today. These were transplants of Shuko and Prize Choy bok choy, and Blue napa cabbage. I’m eyeing some lettuce transplants, and if I decide that they’re sufficiently large to transplant, they’ll share a bed with the cabbages.Chinese cabbage transplants

Reconsidering, the end of the gardening season isn’t really drawing nigh. The cabbages won’t be large enough to make a real contribution to a stir fry or a batch of kim chi for at least another month. And then, with cool weather and shorter days slowing growth, the plants will just sit there in the garden, doing fine, patiently awaiting harvest.

Other plants awaiting harvest into autumn from plantings over the past few weeks are Hakurei turnips, crunchy, sweet, and spicy fresh in salads, daikon and Watermelon radishes, for salads or kim chi, and, also for salads, lettuce, spinach, arugula, and mustard greens. The last salad stuff will be endive, sown back in early July, and transplanted in early August in a bed previously home to the first planting of bush beans.

The season’s various plantings mesh together nicely. Those bok choy and napa cabbages went into a bed just cleared from the first planting of sweet corn. The bed previously planted with of lettuce, arugula, and spinach seed followed on the heels of onions sown indoors in February, transplanted into the bed in May, and harvested a few weeks ago.

A Whole New Garden, Now

In addition to good timing, the autumn garden — which is like having a whole other garden, except it’s in the same place as the summer garden — demands good soil. That soil has to support this whole other wave of plants.

Through summer, I looked upon any weeds I encountered as potential factories for making more weeds, via spreading seeds and/or roots. Left alone, that weed and its progeny would rob food and water meant for my cabbages and lettuces, and shade my plants into submission.

With that in mind, when I cleared the beds of spent corn or bean plants, I pulled out every weed in addition to the spent vegetable plants. I tried to get roots and all for each weed, which isn’t that difficult if you keep up weeding all summer.

After clearing a bed of weeds and vegetable plants, down went a carpet of compost. Spreading compost on bedA one to two inches deep layer smothers most weeds sprouting from seeds as well as provides nourishment for multiple waves of vegetable plants — for a whole year! (Also provides food and habitat for beneficial soil organisms, protects the surface from washing, and increases the soil’s ability to hold on to both air and moisture.)

So the season hasn’t scooted by; the autumn season is just beginning. There’s still some room for reflecting on the season up to this point. Most notable has been this year’s pear crop.

Pears: Easy To Grow, Hard To Harvest (Correctly)

Among the common tree fruits, pears are the easiest to grow. They’re a bit slow to come into production but are often free of significant pest problems. They’re also pretty trees, all season long, especially the Asian pears.

It’s not all smooth sailing from planting to flowering to harvest to eating for European pears, which includes Bartlett, Bosc, Anjou, and other pears with which most people are most familiar. The problem is knowing when to harvest them. Pears ripen from the inside out, so need to be harvested when mature (whenever that is), then ripened in a (preferably cool) room indoors. Left hanging on the tree too long, and the fruit tastes sleepy, at best, or has turned mushy; harvested too soon and the fruit never loses a grassy flavor. (Asian pears are easy to harvest. When they taste good right off the tree, they’re ripe and ready.)

Frederick Clapp pear tree

Frederick Clapp pear tree

Appearance of the fruit, calendar date, and ease of separation from the stem when lifted with a twist are all indicators of ripeness. I’m finding that few fruits dropping from a tree are a good sign that it’s time, or almost time, to harvest.

Pears, A Book

The Book of Pears
As luck would have it, a beautiful new book, The Book of Pears, by Joan Morgan, arrived in the mail just as pear harvest was beginning (with the variety of Harrow Delight). Replete with old and new illustrations depicting the history of pear cultivation, a large portion of the book offers intimate descriptions and history of many varieties. Beurrée d’Amanlis, for instance, which I grow, originated in a small village in Brittany, but became popular after 1826, when Louis Noisette, a Paris nurseryman, received some fruit from his son, director of the Nantes Botanic Garden.

The book devotes a little space to growing and cooking the fruit. I, of course, immediately looked to see what Ms. Morgan has to say about harvest: “ . . . the next challenge is when to harvest the crop . . . Once they begin to drop from the tree it is time to harvest . . . Experience with your own trees will tell you when to pick.” How true. I’ve grown the variety Magness longest, and usually can pick them to ripen off the tree to perfection. And perfection for Magness means biting into one of the best tasting of all pears.

The Destroyer To The Rescue

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Predatory Helpers

Some of the figs — the varieties Rabbi Samuel, Brown Turkey, and San Piero — started ripening last week. With their ripening, I am now in a position to claim victory over the mealybugs that have invaded my greenhouse fig-dom for the past few years.
Mealybugs look, unassumingly, like tiny tufts of white cotton, but beneath their benign exteriors are hungry insect. They injects their needle-like probiscis into stems, fruits, and leaves, and suck life from the plants, or at least, weaken the plants and make the fruits hardly edible.

Over the years I’ve battled the mealybugs at close quarters. I’ve scrubbed down the dormant plants with a tooth brush dipped in alcohol (after the plants were pruned heavily for winter). I’ve tried repeated sprays with horticultural oil. I put sticky bands around the trunks to slow traffic of ants, which “farm” the mealybugs. And I’ve rubbed them to death with my fingers when I came across them on the stems. All to no avail. The mealybugs always made serious inroads into the harvest.

Mealybugs finally have been quelled this season thanks to another insect, the aptly named “mealybug destroyer” (Cryptolaemus montrouzieri), available from www.insectary.com. To soldier along with the mealybug destroyer, I also ordered some green lacewing (Chrysoperla rufilabris) eggs. Besides attacking the mealybugs, the lacewings prey on aphids, seizing the aphids in their large jaws, injecting a paralyzing venom into them, and then sucking out their body fluids. With good reason, lacewings are also called aphid lions.

Mealybug destroyer

Mealybug destroyer

I ordered the first batch of predators in early summer. After recently noticing a buildup of mealybugs again, I ordered another batch. The mealybug destroyer and aphid lion populations may have plummeted after they ate all the bad guys, or they may have found their way to greener pastures via the many openings in the greenhouse.

The smallest amount of either pest that could be purchased could have policed a greenhouse much larger than mine, so the predators were relatively expensive: about $80 per shipment, with shipping. Still, I estimate the potential ripening of about 160 figs, which brings their cost to $1 per fig. Not bad for a dead ripe, juicy, ambrosial fruit that, with each bite, transports me back thousands of years to the Fertile Crescent, where figs originated.

Help From The Queen

A visitor to my greenhouse might have thought it looked weedy this summer. Tall flower stalks of Queen Anne’s lace grew with abandon, cilantro flowered and then their seed heads flopped down willy nilly, lettuce grew bitter as the plants bolted, and mustard greens shot up stalks capped with yellow flowers. There was reason for this wild wantonness.
The purpose of all these flowers was to encourage the adult mealybug destroyers and aphid lions to stick around. Flowers of plants in the Carrot Family, such as Queen Ann’s Lace and cilantro, the Daisy Family, such as lettuce, and the Mustard Family, such as, of course, mustard, provide nectar and pollen that the predators enjoy.Queen anne's laceThe Carrot Family Helps Out

I also encouraged beneficial insects outdoors, in my vegetable gardens, by growing or, at least, letting grow, some of these same plants.

Add to that list dill, another member of the Carrot Family, which I always let flower and set seed in the garden. Those seeds become next year’s dill plants with no extra effort on my part except to weed out excess self-sown seedlings.

For some reason, dill did not self-seed in the garden the past two years, so this year I bought and planted seed. “Planted” might be too specialized a term for what I did. In fact, I just tore open the packet of seeds, poured them into my hand, and waved my hand as I let the seeds fly. Like magic, seeds sprouted a few weeks later.
This season’s dill not only encouraged beneficial insects and provided some ferny leaves and seed heads for flavoring, but also provided beauty. The variety was ‘Fernleaf,’ which grows dwarf, compact plants that also are slower to make flower heads. Perhaps it was the compactness of the flat heads of greenish yellow flowers or the denser backdrop of green leaves, but the plants captured my attention every time I walked by them. Still do, because they’re still blooming.Fernleaf dill

Queen Anne’s Lace also appeared in my garden with no extra effort on my part. Not only from self-seeding, as a weed. But also from an occasional rogue carrot seed from those I planted. Queen Anne’s Lace and carrot are the same genus and species, carrots having been selected and bred to make fatter, juicier, tastier, and orange-er (or, these days, purple-er) roots.

Here, at least, this season was particularly welcoming of QueenAnne’s Lace. The meadow next to the vegetable gardens has been dotted white with an abundance of their flowering heads.