Planning – Page 2

MARKING SPRING’S ONWARD MARCH

April 28, 2021/8 Comments/in Flowers, Planning/by Lee Reich

It’s spring, a time when a man’s thoughts turn to . . . flowers, of course. (At least this man’s thoughts, some of them, do.) Sure, I’ve been reveling in the colorful progression of blossoms beginning, this year, with cornelian cherry and hellebore on about the first day of spring, and moving on to forsythia, plum, Asian pear, flowering quince, European pear, cherry, and — probably by the time you read this — apple followed by shipova. All this is the flamboyance of spring.

This year, I’ve also been admiring a few of the more subtle flowers of spring.

MAPLE BEAUTIES, AND OTHERS

Some of the maples are now in bloom. Sugar maples (Acer saccharum) is perhaps the prettiest and most useful of the maples. Unfortunately, it’s also the least tolerant of compacted or wet soils, or a warming climate. The beauty of sugar maples lies not just in the leaves’ autumn show of color or the majestic form of an older tree.

Acer, sugar maple flowers, closest

Check out sugar maple’s flowers. They dangle like pale green wisps of lace from the branches, subtly attractive in their own right viewed up close and especially so in the forest. As a prominent species in the Shawangunk Mountains here in New York’s Hudson Valley, en masse the trees suffuse the view of the mountainside from afar with a welcoming softness.
View of Shawangunk Mountains
Red maple I(Acer rubrum) is another very attractive — and very variable — maple. The showiness of its blossoms relies on color, a deep, deep red. The blossoms arrive very early, and what I’m seeing is the aftermath of the blooms, clusters of red seeds, their wings spread as if ready to fly, which they soon will.

Acer, red maple seeds

Not nearly as appealing, in many ways, as a tree, but even more cosmopolitan in its environmental tolerance, is silver maple (A. saccharinum). Flowers are blah. The tree tends to drop branches. No autumn color to speak of, either. It is fast-growing, though. As expected, the roots are equally fast growing and shallow. I once lived in a house in front of which grew two giant silver maples. One day, while investigating a clogged water line in the crawlspace, I came upon what looked like a thick, half-buried leg of an elephant. It was one of the silver maple’s roots.

The last —unfortunately too common — maple around here whose flowers or fruits I’ve been noticing is Norway maple (A. platinoides). This species was once widely planted as an ornamental but is now frowned upon because it casts a lugubrious shade beneath which grass or, in the woods, many wildflowers have difficulty growing. It’s an invasive plant that can displace sugar maple in wild settings. In autumn, leaves hang on for a long time, long enough to look forlorn after being burned by a freeze or, barring that freeze, for occasional leaves to begin turning a sickly yellow before naturally dropping.

Norway maple flowers

Norway maple’s flowers, viewed up close, are surprisingly attractive, something like those of sugar maple as clusters of them hang downward on stalks, something like a chandelier. But with none of the grace of sugar maple’s long flower stalks.

PHENOLOGY

I believe I have earned the title of “phenologist.” No, I haven’t been measuring skulls to assess character, which is the realm of phrenology. Phenology, which I have been practicing, is the study of climate as reflected in the natural cycles of plants and animals.

For the past 30 plus years, I have recorded the dates on which various plants have blossomed or ripened their fruits. My interest has been horticultural: In spring, plants blossom after experiencing a certain accumulation of warm temperatures; fruit ripening reflects, to a lesser degree, further accumulation of warmth. The amount of warmth needed to bring on those flowers or ripen fruits varies with the kind of plant, sometimes even with the variety of plant.

Forsythia in bloom

Depending on late winter and spring weather, blossoming dates for various plants can vary quite a bit. Microclimate also plays a role, so I’ve tried to always note blossoming on the same plant from year to year. This year, forsythia bloomed about April 9th, which is pretty early as compared with previous years although in 2010 it bloomed on April 1st and that was topped by 2012’s bloom on March 20th. Contrast that with 1984, when it bloomed on April 25th! On average, bloom dates have crept earlier and earlier over the years, a reflection of global warming.

In the garden, seeds and seedlings shouldn’t be sown or transplanted until the soil has warmed sufficiently, which likewise reflects that accumulation of warmth. Some seeds or seedlings require more warmth before they can grow (or survive) than do others. Knitting all these phenomena together, I plant, for example, lettuce seeds when forsythias blossom, broccoli transplants when pears blossom, and sweet corn when honeysuckles blossom.

Pears in bloom

These sunny days and balmy temperatures are heavenly – except that they’re also coaxing earlier blossoms from my fruit trees, blossoms that could get burned by subsequent frosty nights. The earlier these trees bloom, the more chance for those blossoms to get burnt on a subsequent frosty night.

The historical average date of the last killing frost around here is about the middle of May. Even warming trends might accommodate a frosty night or two that can wipe out a whole season’s harvest of apples or peaches, the first of which is about to bloom and the second of which has bloomed.

Still, it’s a glorious time of year, with no small contribution from the maples.

THE SHOW GOES ON

November 5, 2020/5 Comments/in Design, Planning/by Lee Reich

Lesser Known

A whole slew of clear, sunny days and cool nights caused sugar maples to put on a particularly fiery show of yellow and orange leaves this fall. That’s mostly over now around here — but a number of other trees and shrubs, many not well known, are keeping my farmden and beyond colorful longer.

Little known, for instance is Persian ironwood (Parrotia persica). I planted it years ago as a shade tree. Big mistake! For shade, that is. It doesn’t grow very large and is more of a large, multistemmed shrub. I’m glad I planted it, though. The smooth, gray stems grow thick and often horizontally, then downward a little before heading skyward, sort of like a miniature beech.

Parrotia leaves But I’m writing about color, and Persian ironwood has it, the leaves emerging purplish in spring, turning a lustrous green in summer, then morphing into variable shades of yellow, orange and red in autumn.

Also not well known is Korean mountainash (also called Korean whitebeam, Sorbus alnifolia). It’s closely related to more familiar mountainashes except in a different subgenus, Aria, with simple, rather than compound, leaves. I first saw this tree one fall at the Scott Arboretum in Pennsylvania and, knowing the tiny fruits make a good nibble, ate some. And knowing a whole tree can be grown from a tiny seed, I saved some seeds for planting.

That was in 2006, and the tree is now about 20 feet tall and draped in rusty red leaves that are splashed with yellow. As with the sugar maples, the color is particularly good this year — and fruits, which I’ll be nibbling, are also particularly abundant. As an added plus, the tree, each spring, is draped in large clusters of foamy, white flowers.
Korean mountainash
Another rare bird is Japanese stewartia (Stewartia pseudocamellia) which I planted — was it for its bark, for its flowers, or was it for its autumn leaf color? All are outstanding. The bark exfoliates in the same way as does sycamore, leaving silvery gray and charcoal gray patches against a khaki background. Its cup-shaped, white flowers with yellow center are like camellias, a relative. Right now, the leaves are a warm terra cotta color shading, in parts, to yellow.

Stewartia

Fothergilla (Fothergilla gardeneii) is one more lesser known plant now aglow here. This small shrub’s leaves’ traffic-stopping, rich red color is heightened by occasional blushes of yellow and dark red. Back in spring, candles of fragrant, creamy white flowers perched atop the ends of stems.
Fothergilla leaves

Known for Their Fruits

Some plants that I grow for their fruits are also more than earning their keep with fall color.

Huckleberry (Gaylussacia baccata) is among the best of these, and the color makes up for its relatively poor yield of fruit. The deep red leaves look pretty highlighted among the evergreen leaves of rhododendron, mountain laurel, and lingonberry in my “heather bed.” (All are in the Heather Family, Ericaceae.) Where the plants are really spectacular is in the Shawangunk Mountains that rise up just west of here. There, whole swaths of plants paint the forest understory red.
Huckleberry leaves Pawpaw (Asimina triloba) is another fruit plant here, this one with many tropical aspirations. Tropical aspirations? It’s the northernmost member of the mostly tropical Custard Apple family (Annonaceae); its fruit has taste and texture reminiscent of banana; the fruits hang in clusters like bananas; and its long, drooping leaves would be visually at home in tropical climes. Come fall, the plants shed those tropical aspirations as the leaves turn clear yellow, especially nice when backlit by sunlight.
Pawpaw fall leaf color
I often rave about blueberry for its ease of growth, its pretty, white flowers in spring, its long season of harvest, its health benefits, and of course, its delicious fruits. I’m sure I’ve also mentioned its fall color, to me one of the best of all plants, mostly crimson but depending on the variety and the season, also with some yellow.
Blueberry leaves in fall
(I delve into the planting and use of these and other ornamental fruit plants in my book Landscaping with Fruit.)

Look Down

Perhaps it was a couple of particularly cold nights, with temperatures dropping into the low 20s, that caused leaves to all of a sudden drop all at once from certain trees. At any rate, the beautiful carpets blanketing the ground beneath these trees have caught my eye.

Pawpaws, for one, the overlapping, large leaves thoroughly hiding the grass beneath them.

Even at their best, mulberries leaves are nothing to look at in fall (but the trees do have other ornamental attributes, so did make it into Landscaping with Fruit). This year, though, the green leaves that plopped onto the ground following the cold nights did catch my eye. Perhaps it was the low angle of the sun reflecting off them; perhaps it was their shine.
Mulberry leaves on the ground
One tree whose leaves are perhaps at their best on the ground in ginkgo (Ginkgo biloba). This one is edible, allegedly delicious, but did not make it into my book. The edible part is the nut (seed) inside the fruit. The problem, for me, is that the fallen fruit smell like an open sewer. Really!
Ginkgo tree in fall
The way around this is to forgo the fruit by planting a male tree. The fan-shaped leaves of this living fossil, whose appearance dates back to the Early Jurassic, turn the clearest yellow imaginable in fall. They’re at their best when they drop, making the ground look as if a sunbeam had fallen from the sky.

I haven’t — yet? — grown ginkgo myself.

READY FOR 2021

August 19, 2020/5 Comments/in Books, Planning, Soil, Vegetables/by Lee Reich

Why Now?

For the past week or so I’ve been getting parts of the garden ready for next year. Too soon, you say? No, says I.

Pole beans

A bed of corn and a bed of bush beans are finished for the season. Not that that’s the end of either vegetable. I planted four beds of corn, each two weeks after the previous, and the two remaining beds will be providing ears of fresh Golden Bantam — a hundred year old variety with rich, corny flavor — well into September.

The bed of bush beans will be superseded by a bed of pole beans, planted at the same time. Bush beans start bearing early but peter out after a couple of harvests. Pole beans are slower to get going, but once they do, they keep up a quickening pace until slowed, then stopped, by cold weather.

Why, you may ask, ready those beds now for eight months hence? One reason is that the garden is always such a flurry of activity in spring that I welcome one less thing that needs doing then. Also, part of garden preparation is thorough weeding (which I also keep up with, though less thoroughly, all season long). Any weeds checked now means less weed seed to spread around the garden and, in the case of perennial weeds, less opportunity to gain a foothold.

And later in the season…

And, later in the season

And beds prepared now need not sit idle till spring. Right after getting the old bean bed ready for spring, I’ll plant it with vegetables that thrive in the cool weather of fall, vegetables such as lettuce, endive, turnips, Chinese cabbage, and winter radishes. The bed will be ready as soon as fall vegetables are harvested and out of the way.

And How? Simple.

No magic potions or secret techniques ready my beds now for next year. What’s needed, besides weeding and fertilizing, is to maintain or increase levels of soil organic matter. Organic matter is integral to good fertility, maintaining a diverse population of beneficial soil microbes, and improving soil aeration and moisture retention. It’s what put the “organic” into organic gardening.

The way I provide all this can be summed up in one word: compost.

Okay, there is more to it. My vegetable garden is laid out in beds that are 3 feet wide with 18 inch wide paths between them (and a 5 foot wide path up the middle of the garden for rolling in cartfuls of compost). Soil in the beds has not been tilled or otherwise unduly disturbed for decades, which has many benefits that I delve into in my book Weedless Gardening.

First step in getting the garden ready for next year is to remove all existing plants, be they corn, bean, or weed plants. I excise most plants, including weeds, by grabbing each near its base and giving it a slight twist to sever it from its fine roots, which are left in place. Coaxing with my Hori-Hori knife is sometimes needed. Corn plants definitely need coaxing, which I do by digging straight down around the base of each plant and then giving it a yank. After all this, I smooth out the ground, if necessary, with the tines of a rake or pitchfork.

A one inch depth of finished compost should provide all that intensively grown vegetables require for a whole season. That one inch of compost is laid down like a rich icing right on top of the bed. Finished!
Composted garden bed
Okay, there’s sometimes a little more to it. I noticed weak growth in one of the later corn beds, possibly due to nitrogen deficiency, although untimely, temporary malfunction of my drip irrigation system at a critical growth stage for the corn is another possibility. Just too make sure, I will sprinkle some organic nitrogen fertilizer (soybean meal) in that bed when I prepare it.

(I could test the soil for some other nutrient deficiency, but after years of using compost made from diverse feedstuffs, some other nutrient deficiency is doubtful. There’s no good test for nitrogen because of its evanescence in the soil.)

Okay, there’s sometimes even a little more to my soil prep. If a bed is finished for the season and I have enough cleared beds for all the cool season vegetables, I could just prepare the bed, as above, and that would be the end of the story. But I don’t like to look at bare ground, so beds cleared and prepared early enough in the season, which is about the end of September here in Zone 5, get planted with a cover crop. Cover crops protect soil from wind and water erosion, latch onto nutrients that would otherwise leach down and out of the ground, and crumble the soil to a fine tilth with their roots. And going into winter, I’d rather look at a lush, green cover crop than bare ground.

Cover crop in autumn

My usual cover crop of choice is oats or barley. Both thrive in autumn’s cool, moist weather. They mesh well with no-till because they winterkill here in Zone 5.

This year, especially for my beds of corn, which is a nitrogen-hungry plant, I’ll mix crimson clover in with the oats or barley. As a legume, the clover will enrich the ground with extra nitrogen that it extracts from the air. And the vivid crimson flower heads, sitting atop stalks like lolliopops, will look nice.

ENTERING THE TWILIGHT ZONE

July 15, 2020/13 Comments/in Gardening, Planning, Vegetables/by Lee Reich

Bigger Garden, Same Size

Over the years I’ve greatly expanded my vegetable garden, for bigger harvests, without making it any bigger. How? By what I have called (in my book Weedless Gardening) multidimensional gardening.

I thought about this today as I looked upon a bed from which I had pulled snow peas and had just planted cauliflower, cabbage, and lettuce. Let’s compare this bed with the more traditional planting of single rows of plants, each row separated by wide spaces for walking in for hoeing weeds, harvesting, and other activities. No foot ever sets foot in my beds, which are 3 feet wide. Rather than the traditional one dimensional planting, I add a dimension — width — by planting 3 rows up that bed. Or more, if I’m planting smaller plant such as carrots or onions.
Bed of lettuce and chinese cabbage'
Let’s backtrack in time to when the bed was home to peas. Oregon Sugar Pod peas grow about 3 feet tall, so after planting them in early April, I made accommodations for them to utilize a third dimension in that bed, up. A three foot high, temporary, chicken wire fence allowed them to grow up, flanked on one side by a row of radishes and on the other side by a row of lettuce.

60 pounds of onions in 33 square feet!

There you have it, 3 dimensions. The bed length. The bed width, only three feet wide, with three or more rows down its length. And up.

A Fourth Dimension

Three dimensions isn’t the end of the story for multidimensional gardening. Time is another dimension. Neither peas nor radishes nor lettuce, occupy any bed for a whole season. Peas peter out in hot weather which, along with longer days, tells radish and lettuce plants that it’s time to go to seed. Those conditions tell me that radish roots are getting pithy and lettuce gets bitter, so out they go.

In my planting of cabbage, cauliflower, and lettuce, closer planting is possible because it allows room for longer maturing plants to expand as quicker maturing plants get harvested and out of the way. The middle row of the bed is planted to Charming Snow cauliflower, which will be ready for harvest around the first half of September. I can’t dawdle with that harvest because, left too long, cauliflower curds become loose and quality plummets.

I’ve planted Early Jersey Wakefield cabbage — an heirloom variety noted for its flavor — in a row eight inches away from the row of cauliflowers. The plants in the cabbage row are staggered with those in the cauliflower row, putting a little more space between plants from one row to the other. Early Jersey Wakefield will mature towards the end of September; no need to run out and harvest them all once they’re ready. In cool weather, the heads stay tasty and solid right out in the garden.

The row of Bartolo cabbage — a good storage variety — flanks the cauliflower on the other side of the bed. Bartolo requires 115 days to maturity.

Between each of the cabbage plants I’ve transplanted one or two lettuce seedlings. They’ll be ready for harvest and starting to get out of the way within a couple of weeks.

Mixing and Matching

How long a vegetable takes to mature, what kind of weather it likes, and the length of the growing season all need to be considered in order to make best use of four dimensions in the vegetable garden. Doing so, it’s often possible to grow three different crops in the same bed in a single season.

Here’s a table I made up listing some combinations that have worked well in my planting beds according to preferred temperature (cool or warm) and time needed until harvest (short, medium, or long season). That’s for here in New York’s Hudson Valley, with a growing season of about 170 days.
Examples of planting combinations
For example, looking at the first group, a tomato bed could start with lettuce, which will be out of the way by the time tomato transplants have spread to need the space. An example from the second group would be a bed with an early planting of turnips followed by a planting of okra followed by a planting of spinach.

A big advantage of these mixed plantings is that they present less of a visual or olfactory target for pests to hone in on, and they cover the ground enough to shade it to limit weed growth.

Lettuce and cucumbers

Carrots and lettuce following early corn

And Finally, the Twilight Zone, But Not For Now

Is it possible to find yet another dimension in the vegetable garden, a dimension beyond space and time? The Twilight Zone. Sort of. This fifth dimension is made up of a few tricks designed to find time where it is not, tricks meant to add days or weeks to the beginning and/or end of the growing season. But mid-July isn’t the time to detail ways of adding this dimension.

Trying to fill every available niche of physical space and time in the vegetable garden is like doing a four- (or is it five-?) dimensional jigsaw puzzle. Assembling this puzzle can sometimes bring on as much frustration as doing a real jigsaw puzzle. When I began gardening, I would sometimes get overwrought trying to integrate every multidimensional “puzzle” piece into every square inch of garden. Then I learned: When in doubt, just go ahead and plant.

BAD SEEDS? NO SEEDS?

June 18, 2020/14 Comments/in Gardening, Planning, Vegetables/by Lee Reich

Edamame Scare

Got a couple of scares in the garden this season. No, not some woodchuck making its way past the dogs and then through some openings in the fences to chomp down a row of peas (which look especially vibrant this year, thank you). And no late frost that wiped out my carefully tended tomato transplants.

The first scare came last week as I looked down on the bed where I had planted edamame a couple of weeks previously. No green showed in the bed, a stark contrast to the nearby bed planted at the same time with snap beans, the small plants enjoying the warm sunshine and neatly lined up four inches apart in two rows down the bed.

Testing edamame seeds

Scratching gingerly into the soil of the edamame bed did not reveal any seeds germinating but not yet above ground. In fact, I couldn’t find any seeds at all! Had I opened furrows and forgotten to plant seeds in them before covering the furrow? Doubtful, especially since I had planted another bed, still barren, in the other vegetable garden at the same time. Had a mouse or some other animal cruised underground enjoying a snack every four inches down the row? That would be a very thorough rodent. Plus, he or she would have left a tunnel.

Had the seeds rotted? Possibly, but that would be very quick for them to so thoroughly disappear. Had the seeds been old, which would make them more prone to rotting? I do save my own edamame seed every year, the variety Shirofumi, so that is a possibility. Except that I planted last year’s seed.

The mystery still exists but there was still time for action. I had additional Shirofumi seed left. Rather than just plant it, I’d test its germination, which I did by sprouting the seeds indoors. After an overnight soak in a beaker, I poured off the water and then rinsed the seeds twice daily. As it turned out seed from 2018 and 2015 didn’t germinate at all.

Last year’s seed germinated very well, and I planted them while their root sprouts were still very short. One week later, the plants have emerged. But the mystery still exists. Planting sprouted edamame

What If?

The second scare of the season is seed-related but hypothetical. What if seeds are unavailable next year, or any year? Or, at least, seeds of some of the varieties I want to grow.

This fear is not all that hypothetical. This spring, because of the surge in interest in gardening, seeds were harder to get.

And in years past, seeds of some of my favorite varieties of vegetables became difficult to find. Sweet Italia pepper, for instance, which I consider the best as far as flavor and early ripening for colder climates. My recourse has been to save my own seeds of these varieties for many years. In addition to Sweet Italia, I also save seed of Pink Pearl and Pennsylvania Dutch Butter popcorn, Otto File polenta corn, and, as mentioned above, Shirofumi edemame.

Sweet Italia pepper Popcorn hanging from kitchen rafters

This season, the plan is to save seed of more vegetables.

A few guidelines will make seed-saving a success. First, I won’t save seed from “F-1 hybrids;” they are produced with selected, different parents, so the saved seed will not yield the same variety as the seed that is saved.

Selecting seeds from too few individuals can result in inbreeding depression, or generally weaker plants. So my second guideline is to save a few seeds from a lot of plants, then combine them to put more genetic diversity into the seed packet packet. Saving seed from more than one plant also provides insurance just in case a seed plant dies.

Some vegetable plants — corn, onions, and the cabbage family, for example — are especially prone to inbreeding depression. Saving seeds from Otto File and my popcorns is especially easy since the seeds are dry and mature when ready to eat or save. When I twist the kernels off an ear for eating, I just take out a few to add to my growing seed packet of that particular variety.

Arugula (Cabbage family) flower and seedpod

A third consideration in saving seed is keeping the seed true to variety. Varieties of sweet corn readily cross-pollinate. Again, it is corn, onions, and the cabbage family that are among the common vegetables that readily cross pollinate. So I grow popcorn in one vegetable garden and sweet corn in the other, and Otto File corn out in my meadow between dwarf apple trees. If my Golden Bantam sweet corn were to grow too close to my Pink Pearl Popcorn, the resulting seeds will grow into plants yielding kernels that were less sweet or less poppable.

Although squashes have separate female and male flowers on the same plant, which would make them prone to cross-pollination, that’s no problem here. Zucchini flower and fruit I grow only Sweet Mama and Waltham winter squashes. The first variety is botanically Cucumbita maxima and the second is C. moschata; the two species do not cross-pollinate.

Plants that can self-pollinate, such as tomatoes, peppers, beans, and peas, could be contaminated by pollen from other, nearby varieties. Tomato flower Distance between varieties can prevent cross-pollination. So can fine mesh bags. I plan to use small organza bags normally sold for wedding favors.

And finally, good storage, meaning dry and cool or cold conditions, makes sure seeds germinate well. Which my edamame did not. Hmmm.

(For more depth in seed saving, see the excellent and thorough book Seed to Seed: Seed Saving and Growing Techniques for Vegetable Gardeners by Suzanne Ashworth.)

ALL FOR THE FUTURE

June 11, 2020/16 Comments/in Gardening, Planning, Vegetables/by Lee Reich

Seeding Transplants? Again.

Only a couple of weeks ago I finished planting out tomato, pepper, melon, and the last of other spring transplants, and here I am today, sowing seeds again for more transplants. No, that first batch of transplants weren’t snuffed out from the last, late frost when the thermometer dropped to 28°F on May 13th.

Sowing lettuce seeds in flats
And no, those transplants were not clipped off at ground level, toppled and left lying on the ground, by cutworms. Neither were they chomped from the top down to ground level by rabbits.

I’m planting seed flats today to keep the harvest rolling along right through late autumn.

Future Further

Looking farthest ahead, I have in hand two packets of cabbage seed, Early Jersey Wakefield and Bartolo. Early Jersey Wakefield is a hundred year old variety with very good flavor and pointy heads, due to mature a couple of months after transplanting. Once those heads firm up, they can keep well out in the garden for a few weeks in the cool, autumn weather. Those I set out in spring, once mature, are apt burst open from rapid growth in summer weather. Bartolo yields firm, round heads that store in good condition after harvest, well into winter. They are ready for harvest 115 days after transplanting.
Cabbages and kale interplanted in bed
I plan for any of today’s sowings to spend about a month in their containers before being planted out. Cooler weather and lowering sunlight dramatically slow plant growth around here by early October, so any late ripening vegetables need to be ready or just about ready for harvest by then. Bartolo cabbage, with 30 days in a seed flat plus 115 days out in the garden, is then ripe by . . . whoops . . . the END of October! No wonder Bartolo often didn’t ripen for me in the past. (Nothing like writing about my garden to keep me honest and awake. I should re-read the detailed timing schedule I wrote in Weedless Gardening for various vegetables in various climates.)

Okay, all is not lost for winter storage cabbage. Warm weather, timely water from drip irrigation, and soil enriched with plenty of compost might speed maturity along faster than predicted. Unseasonally warm weather through October would also help ripen nearly ripe heads. And there’s always the fallback, with sure-to-ripen Early Jersey Wakefield.

Still on time, guaranteed, will be today’s sowing of Charming Snow cauliflower, maturing 60 days from transplanting.

That’s it, for now, for the cabbage family. Later on in summer I’ll be sowing Chinese cabbage seeds. Perhaps more kale also, although spring sowings of this almost perfect vegetable can carry on right into winter, even spring if the winter is sufficiently mild.

Future Sooner

For sooner use in the coming weeks will be today’s sowings of lettuce, cucumber, and summer squash. I like lettuce but lettuce doesn’t like hot weather and longs days. Those conditions cause leaves to turn bitter as plants send up flower stalks and go to seed. But if I sow a pinch of seeds in flats every couple of weeks, the transplanted lettuce can usually be harvested small, before it’s socked away enough energy and wherewithal to go to seed.

The cucumber transplants I’ll want on hand to replace cucumber plants that I set out a couple of weeks ago. After a few weeks those spring plantings invariably succumb to powdery mildew and cucumber beetles, which not only feed on the plants but also spread bacterial wilt disease. (Easy identification for bacterial wilt, besides a wilting plant, is the thread of bacterial ooze visible as you pull apart a cut stem.)
Cucumber seedlings
Summer squash plants also peter out during summer, mostly from, again, powdery mildew, and also from squash bugs and vine borers. If squash vines are covered with soil along their stems, roots will form at the nodes, and the plant will continue production. I’ve got to be careful in saving the older squash plants, though; it’s too easy to have too much of this vegetable.
Squash vine borer damage

Memorial Day, Before, During, and After It

Here in the States, the traditional time to plant a vegetable garden, is for some reason, Memorial Day weekend. But that can’t be true from Oregon to Florida and from Maine to Arizona, with our wide variations in climate!

I did put tomatoes, peppers, and plenty of transplants in the ground here during Memorial Day weekend. But I already had sown seeds or transplants of peas, arugula, lettuce, kale, carrots, celeriac before that weekend. And, as I’ve written above, there’s plenty of planting to be done after that date. Memorial Day weekend is not a seminal date in my gardening calendar.

Spring: A Manic Time in the Garden

April 22, 2020/23 Comments/in Flowers, Fruit, Planning/by Lee Reich

The Season’s Ups and Downs

To me, spring can be a manic time of year. On the one hand, no tree is more beautiful or festive than a peach tree loaded with pink blossoms. I’d say almost the same for apples, pears, and plums, their branches laden with clusters of white blossoms.
Peach tree in bloom
And it’s such a hopeful season. If all goes well, those blossoms will morph, in coming months, into such delicacies as Hudson’s Golden Gem and Pitmaston Pineapple apples, and Magness, Seckel, and Concorde pears. My peach tree was grown from seed, so has no name. With all this beauty and anticipation, I can periodically forget the pandemic that’s raging beyond my little world here.

But even as my eyes feast on the scene and I forget about the pandemic, I can’t forget about the weather’s ups and downs. Specifically, the temperature: Frosty weather has the potential to turn blossoms to mush and ruin the chances for fruit. Especially on my farmden, here in the Wallkill River valley. As in other low-lying locations, on clear, cold nights, a temperature inversion occurs, with heat radiated to the clear sky making ground level temperatures low. Cold air is denser than warmer air, so all the cold air flows down slopes to collect in valleys.

There’s not much to do to avert that frost damage. A blanket thrown over a tree would help but my trees are too large and too many. Branches could be sprayed with water; water, in transitioning to ice, releases its heat of fusion as long as it’s continuously applied. A helicopter or a “wind machine” could dilute colder air at ground level with warmer air from higher up. These methods might be used commercially but, to quote the sage of Newburgh (that’s another story), “That’s not gonna happen” here.

Therapy, a Plan

Rather than worrying myself into the manic phase of spring, I’m going to assess the damage and live with it. For starters, I need to know the temperature.

I have been using is a nifty little device called Sensorpush, a 1-inch square cube, perhaps a half-inch thick, that I have mounted outside and that continually transmits the temperature to my cell phone. Sensorpush receiver Great. Even better, temperature (as well as humidity) is recorded, and can be displayed graphically or downloaded to my computer. So I didn’t have to be awake to find out the mercury hit 32.5°F at 12:16 AM on the night of April 17th and stayed there until it began rising around 7 AM.
Sensorpush readout
Fortunately, researchers have compiled temperatures at which damage to blossoms occurs. Specifically, damage enough to wipe 10% of the crop, and damage enough to wipe out 90% of the crop. And more specifically, applying those numbers to various kinds of fruits, which vary in their blossom’s cold tolerances. And even more specifically to the various stages of blossoming for each kind of fruit. Generally, less cold is required to kill a blossom the closer it is to bloom time.

Here is a chart compiled and photographed by Mark Longstroth of Michigan State University:
Critical temperatures for fruit buds

So now I can take this information, couple it with data recorded by Sensorpush, and foretell my sensory future, pomologically speaking. Below freezing temperatures since trees awakened have been 24° on April 17th, 27° on April 19th, and 26° on April 21st. Of course, it ain’t over till it’s over, and the average date of the last frost here is about mid-May.

Peach bloom

Plum blossoms

My plum trees were in full bloom on April 13th, at which time the blossoms are susceptible to 10% kill at 28° and 90% kill at 23°. That makes only 10% loss. The peach tree was also in bloom on that date, and is very similar in it’s blossom’s cold tolerance, so only 10% loss there also, so far.

Asian pears were showing “first white” and “full white” on April 19th, when the low hit 27°. That temperature would cause them no damage. The same would be true, going forward, for subsequent temperatures above 27°. The Europeans should be fine because today, April 21st, they are in tight cluster, and cold hardy to 24°.

Asian pear full white

European pear tight cluster

Apples also are fine, also in tight cluster so, according to the chart, undamaged by temperatures above 27°.

Apple blossom tight cluster

And a Sprinkle of the Unknown

All this seems very science-y comforting, and it is. As with most garden science, though, things are more complicated, to some extent, than can be easily predicted. For one thing, some variation in cold hardiness undoubtedly exists from one variety to the next. In the case of my trees, I have an American hybrid and some European hybrid plums; they might more generally differ in blossom hardiness. And what about the length of time at a given temperature, and the effect of humidity?

Overall, the chart has calmed me down. Not to mention that a certain amount of fruit loss would be a good thing. A tree has just so much energy, and too big a crop makes for less flavor and size. Only 5% of blossoms of an apple tree need to set fruit for a full crop.

Now, I can move on to worry about insect and diseases that might hone in on my fruit.

INTO THE WOODS

March 11, 2020/19 Comments/in Gardening, Planning/by Lee Reich

Forest Garden Skeptic

“Forest gardening” or “agroforestry” has increasing appeal, and I can see why. You have a forest in which you plant a number of fruit and nut trees and bushes, and perennial vegetables, and then, with little further effort, harvest your bounty year after year. No annual raising of vegetable seedlings. Little weeding, No pests. Harmony with nature. (No need for an estate-size forest; Robert Hart, one of the fathers of forest gardening, forest gardened about 0.1 acre or 5000 square feet.)

Is this a forest garden?

Do I sound a bit skeptical? Yes, a bit. Except in tropical climates, forest gardening would provide only a nibble here and there, not a significant contribution to the diet in terms of vitamins and bulk. A major limitation in temperate climates is that most fruit and nut trees require abundant sunlight to remain healthy; the same goes for most vegetables.

The palette of perennial vegetables in temperate climates is very limited, especially if you narrow the field down to those tolerating shade. I’m also not so sure that weeding would be minimal; very invasive Japanese stilt grass has been spreading a verdant carpet on many a forest floor whether or not dappled by sunlight.

The case could be made — has been made — that some of the dietary vegetable component could be grown on trees. Robert Hart wrote of salads using linden tree leaves instead of annuals such as lettuce and arugula. I’ll admit that I’ve never chewed on a linden leaf. (I’ll give it a try as soon as I come upon one that has leafed out.) My guess is that its taste and texture would leave much to desire.

And how about squirrels? I grow nuts, and part of my controlling them involves maintaining meadow conditions around the trees. This exposes them to predators, including me and my dogs, without their having tree tops to retreat to and travel within. Unprotected, I’ve had nut plants stripped clean by squirrels.

The book Edible Forest Gardens by Dave Jacke offers a very thorough exploration of forest gardening.

But Did I Plant a Forest Garden?

I’ve actually planted a forest garden! Well, perhaps not a forest garden. Over 20 years ago, I did plant a mini-forest. My forest, only about 300 square feet, was originally planted for fun (I like to plant trees), for aesthetics, and for some nutrition. So far I’ve reaped immense visual rewards for my effort.

Here’s what I planted: Bordering a swale that is rushing with water during spring melt and periods of heavy rain went four river birch (Betula nigra) trees. They evidently enjoy the location for they’re now each multiple trunked with attractively brown, peeling bark and towering to about 60 feet in height.

River birch

I also planted 3 sugar maple trees to provide sap for maple syrup for the future. The future is now (except I no longer use enough maple syrup to justify tapping them.) My mini-forest I also planted a white oak (Quercus alba), whose sturdy limbs, I figured, would slowly spread wide with grandeur in about 150 years, after the maples and birches were perhaps long gone. Unfortunately, the white oak died, probably due to winter cold; its provenance was a warmer winter climate. My mistake.

Since that initial planting, I’ve also planted a named variety of buartnut (Juglans x bixbyi), which is a hybrid of Japanese heartnut and our native butternut.

Buartnut (not mine, yet)

I hadn’t realized it, but that tree has grown very fast and now spreads its limbs wide in much that habit as a white oak. The other two trees that I planted are named varieties of shellback hickory (Carya laciniosa). These trees are slow growing but eventually will offer good tasting nuts. They’re quite pretty, even now, with their fat buds.

A Vegetable Also

What about vegetables in my mini-forest? They were not part of my original plan. It turns out that ramps, a delicious onion relative, a native, which I’ve been growing for a few years beneath some pawpaw trees, are spring ephemerals. Spring ephemerals are perennial plants that emerge quickly in spring to soak up sunlight before its blocked by leaves on trees, then grow and reproduce before the tops die back to the ground.

Ramps (Allium tricoccum) are perfect forest vegetable, so I wanted to make the ground beneath my mini forest more forest-y before moving the ramps from beneath the pawpaws. Nothing fancy. All I did was to haul in enough leaves to blanket the ground in the planting area a few inches deep. That leafy mulch will suppress competition from weeds and add organic matter to the soil.

Collecting ramps for transplanting

In just a few years, the ramps will be sufficiently established to provide good eating, perhaps along with some buartnuts and hickory nuts, all from my forest(?) garden.

Drip Opportunity

I’m looking for a site within 20-30 minutes of New Paltz, NY in which to hold a drip irrigation workshop. What I need is a vegetable garden in beds (not necessarily raised beds) for which I would design a drip system. Workshop attendees I would install the system after learning about drip irrigation. Host pays fo materials. Contact me if interested.

To Shred or Not To Shred, That is the Question

February 5, 2020/30 Comments/in Gardening, Planning, Soil/by Lee Reich

Organic Matters

My friend Margaret Roach (https://awaytogarden.com) is a top-notch gardener but not much of a tool maven. She recently said she considers me, and I quote, “the master of all tools and the king of compost” when she asked for my thoughts on compost shredders. (I blushed, but perhaps she was just softening me up for questioning. In fact, her tractor is better than mine.)

Of course I have thoughts about compost shredders.
Me, in my garden in 1970s
Climb with me into my time machine and let’s travel back to the early 1970s, to Madison, Wisconsin, where you’ll find me working in my first garden. Like any good organic gardener, early on I appreciated the many benefits of organic materials in the garden, an appreciation bolstered by my having recently began my studies as a graduate student in soil science.

I was hauling all the organic materials I could lay hands on into my 700 square foot vegetable garden. From near where I parked on the agriculture part of campus I could load up large plastic garbage cans with chicken or horse manure for my compost piles.

Also for my compost piles, and for mulch, was tall grass mowed by road crews along a major roadway, easily scooped up with my pitchfork and packed into those garbage pails. Nowadays, gathering such mowings would be difficult because the flail mowers now used chop everything up rather than lay down the long stalks of yesteryears’ sickle bar mowers. Gathering roadside mowings may also now be illegal. And, in retrospect, those mowings were (and still are) probably contaminated with lead and other heavy metals from nearby traffic.

Garden, Madison, 1970s

Anyway, I now have my own one acre field which I scythe and brush hog for mulch and feeding compost piles.

Bulk and Speed

But I digress . . . Margaret was asking about compost shredders.

One benefit of organic materials in gardening is their bulk; they are mostly carbon, hydrogen, and oxygen, which, over time, ends up as carbon dioxide and water. That decomposition is a good thing because it represents the feeding of soil life and, as decomposition proceeds, plant nutrients are slowly released into the soil.

A downside of all that bulk is that it takes up a lot of space. The decomposition rate is influenced by the materials’ ratios of carbon to nitrogen, inhibitors such as lignin, and particle size. A given volume of smaller particles has greater surface area, accessible to being nibbled away by microbes, than does that same volume of larger particles. Like perhaps many beginning gardeners, I was in a rush to have better soil than the sticky clay I was dealing with.

Enter garden shredders. I headed down to the local Sears Roebuck and Company and purchased a new, gasoline-powered shredder. Back in the garden, I set it up and in little time was reducing large volumes of leaves to smaller volumes of shreds.

That activity probably lasted about 20 minutes before two thoughts entered my head. First, one reason I was gardening was because it was — or could be — good for the environment. I could grow vegetables more sustainably that most farmers of the day, and the vegetables would not have to be transported to me. Shredding seemed, then, a waste of energy. Second, the chugging of the engine didn’t seem to jive with a bucolic activity such as gardening. Fortunately, the shredder could be returned; I packed it up and got my money back. (Unless powered by solar, wind, or some other renewable energy source, and electric shredder also spews carbon dioxide et al. It just does so elsewhere.)

And anyway, there’s no particular need, generally, to speed up the composting process. If you need some finished compost immediately because of poor planning or a beginning garden, there are plenty of places where you can purchase good quality compost. Build a couple or more piles of your own, manage them well, and you’ll have “black gold” always ready in due time.

Solar Enters the Picture

I do still occasionally use a compost shredder — but it’s very quiet and it’s solar powered.
Chopping compost with machete
Also very inexpensive because it’s nothing more than a machete. If I’m piling very rough material such as corn or kale stalks, or very airy material such as old tomato or pepper plants, or large fruits such as overgrown zucchinis onto my compost pile, I’ll chop them with a machete as I add them. (It’s also therapeutic: If everyone spent some time chopping their compost ingredients, as needed, with a machete, the world would perhaps be a more peaceful place.)
Adding material to compost pile
The bottom line is that there’s no reason that you must shred any material for composting. That is, unless it’s absolutely necessary to speed things up or reduce their volume. Is it really necessary? Usually not.

Catalog and Weather Watchin’

January 8, 2020/15 Comments/in Flowers, Planning, Vegetables/by Lee Reich

Armchair Gardening

Pretty much the only “gardening” I’m doing now is thumbing through the seed catalogs arriving in dribs and drabs in my mailbox. I’ve ordered and received what I thought I’ll need, but you never know; maybe there something else interesting out there to grow.

Among the most fun of these catalogs, and strictly for the plant-crazed, is “The 2020 Ethnobotanical Catalog of Seeds,” which used to be called Hudson’s Seed Catalog. The catalog originates in the Santa Cruz mountains of California (once home to Ken Kesey) but offers seed from all corners of the world. Only recently have they come online, at www.jlhudsonseeds.net.
Hudson catalog
I’ve ordered from this catalog for decades, each winter pleasurably and slowly wading through the almost 100 black-and-white pages of small print listings of botanical names and descriptions. For this first run through the catalog, I sit poised with red pen, ready to make a star next to any seed listing that looks particularly interesting. After I go through the whole catalog once, I’ll re-examine all those starred listings and select which seeds to actually order and grow.

Judging from what I’ve so far starred, I seem this year to be drawn to scented plants. Achlys triphylla, also known as vanilla-leaf or sweet-leaf, is one such plant: “Dense spikes of tiny flowers held above the trifoliate fan-shaped leaves. Moist woods from B.C. to California. The sweetly fragrant leaves were highly valued by settlers, who hung bunches in their houses. Sow 1/4″ deep in rich woodland soil, and keep moist. Slow to germinate.”

Another is Adenophora lilifolia, also known as ladybells. This one is described as “sweet-scented light blue 1/2″ wide bell-shaped nodding flowers borne profusely in summer. Very hardy perennial to 1-1/2 to 3 feet, with round, heart-shaped basal leaves. Eurasia. Cultivated in Japan for the thick, edible roots. Germinates in 2 weeks.” For only $2.50 a seed packet, oodles of each of these plants can be growing in and perfuming my backyard this summer.

It’s not just visions of fragrant, comely, or tasty plants that make this catalog fun to read. Berkheya purpurea is native to Africa, with a common name Zulu warrior. How many plants conjure up an image like that!? The plant seems to me less warrior-like, with flowers that are large, silvery-blue to lavender daisies with dark centers. Interesting, but I don’t need another daisy for now.

Short quotes interspersed throughout the catalog set the tone and are food for further thought. Here’s one from Thomas Jefferson: “It does me no injury for my neighbor to say there are 20 gods or no God. It neither picks my pocket nor breaks my leg.” Or, going back 17 centuries, to Aesop: “Any excuse will serve a tyrant.” And then forward, to General Douglas MacArthur: “ If you win, you stand only to lose. War contains the germs of double suicide.” Or, to another American general, Dwight Eisenhower: “Things are more like they are today than they have ever been before.”

So far, I’ve only gotten as far as “D” in the seed listings. There’s still time.

Where’s Winter?

Aren’t temperatures supposed to get colder and colder and colder until the end of this month, and then get warmer and warmer and warmer? That’s how temperatures generally trend in coastal regions, near large bodies of water, and in western Europe. Not so here in the Hudson Valley and over most of continental North America.
Current winter scene
In my garden, the low was 3 degrees in early December and the high was 59 degrees a couple of weeks ago. Such fluctuations are not that uncommon over much of continental U.S. If you don’t like winter, you welcome those balmy winter days; if you like winter and/or like plants, those balmy days make you shudder.

Plants that can take our cold weather like the weather to stay cold all winter. Each time temperatures warm, especially after we’ve had a spell of cool weather, these plants start to awaken slightly from their winter slumber. The closer to spring and the warmer the weather, the more they awaken. Problem is that the more awake a plant is, the more likely damage, even for a cold-hardy plant, from subsequent frigid weather.

All this makes a good case for growing native plants. They’re more used to our mercurial weather and know better than to let a winter warm spell entice them out of their slumber.

However, many cultivated plants are not native. I like to grow fruits, and any fits of warm weather in weeks to come are going to make me nervous about the apples, plums, hardy kiwis, and pears, all non-native and sometimes awakening early enough to be damaged by subsequent cold.

Blueberries, pawpaws, persimmons, raspberries, and mulberries should be fine. Let’s hope for steadily cold weather and plenty of snow for the rest of winter.

Older winter scene