PLANT SALE, PLANT LIST

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Bowl figs & grapes. Concord, Chojuro

Plant Sale

•This year the 14th(?) Annual Plant Sale will be held live, here at Springtown Farmden in New Paltz, NY.
•Plants, available in limited quantities
•Here’s a not necessarily complete list of what’s available (pricing not yet determined):

APPLE (Redfree)
BLUEBERRY (lowbush, Berkeley highbush)
BLACK CURRANT (Belaruskaja, Titania)
RED/WHITE CURRANT (Red Lake, Primus)
FIGS (Sicilian, LSU Purple, Brown Turkey, Rabbi Samuel, San Piero, Unknown)
GOOSEBERRY (Captivator, Chief, Glendale, Poorman, Red Jacket
GARLIC CHIVES
GRAPE (Glenora, Brianna)
HARDY KIWIFRUIT (2 species)
HARDY ORANGE (Poncirus trifoliata)
HAZELNUTS (blight resistant Somerset, Raritan)
HELLEBORE
MEDLAR (Breda Giant, Puciu Mol)
NANKING CHERRY
PEAR (Asian Tsu Li, European Harrow Delight)
PULMONARIA
SWEET WOODRUFF
TOMATOES (heirloom varieties Valencia, Nepal, Pink Brandywine)
WILD GINGER

This year, there’ll also be lots of books (in addition to the ones I wrote), some for sale and some free. The books cover a wide range of gardening topics.

Date and Time: June 12, 2022, 9:30 AM – 1:00 PM
Location: Springtown Farmden in New Paltz, NY

•Parking is available on the street, in the two driveways at the sale, and at the DEC boat launch a few hundred feet north on the opposite side of the street.
•To prevent overcrowding with cars or people, please plan on staying no longer than 15-30 minutes. Thank you.
•You must be (correctly) masked to attend this live sale, Again, thank you.

Nanking cherry, gooseberry, & lowbush blueberry

REGIMENTING TOMATOES

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What’s Better: Loosy Goosy or Soldier Straight?

I wonder how much our gardens reflect our personalities? Some gardeners clip their yew bushes “plumb and square;” other gardeners clip or shear away at their plants more haphazardly. Even in the vegetable patch, a temperament may be reflected in the way tomatoes are grown: Do the plants sprawl over the ground with abandon, are they contained within strings woven up and down the row, or are they neatly staked? (Woven tomatoes or those grown in wire cages are more or less sprawling plants, held aloft.)Staked tomatoes

Whatever your temperament, a good case can be made for staking tomatoes. Tomatoes on a staked plant are larger and ripen earlier than those on a sprawling plant. Good air circulation around leaves and fruits of upright plants lessens disease problems. And fruits held high above the ground also are free from dirt and slug bites. You’ll harvest less fruit from each staked plant, but since staking makes best use of the third dimension, up, staked plants can be set as close as eighteen inches apart. So staking gives the best yields per square foot — especially important in small gardens.

Flavor Picks

Tomato varieties suitable for staking are so-called “indeterminate” types, which form fruit clusters at intervals along their ever-elongating stems. “Determinate” varieties, in contrast, bearsfruits at the ends of their branches, so if a plant was pruned for staking would be reduced to a single short stem capped by a single cluster of fruits. Seed catalogues and packets usually indicate which varieties are suitable for staking.Planted tomatoes

Determinate varieties are bushy plants that need little regimenting. They also ripen their fruits within a shorter window of time.

So what’s not to like about determinate varieties? Flavor! With fewer leaves per fruit than indeterminate varieties, flavor suffers. That concentrated ripening period also can stress the plants, making them more prone to disease.

As you might guess, I grow only indeterminate varieties of tomatoes. Flavor is my main criterion in selecting a variety to grow.

Staking

When choosing a suitable stake for staking (indeterminate, of course) tomato plants, don’t be misled by the puniness of tomato transplants. A tomato stake needs to be be six to eight feet long and metal or at least one by two inches thick if made of wood. I use EMT (electrical metallic tubing) conduit, 5/8 inch diameter and 10 feet long, cut down to 7 feet. It’s easy to pound into the ground (okay, I’ll admit that here on the floodplain there are no rocks), easy to remove, and reusable for years and years.

Most books and other sources of information suggest “planting” your stake along with your tomato plant to avoid root damage later on. Not true. My established tomato plants never bat an eyelash (figuratively speaking) as I pound in metal stakes only a couple of inches from their stems. And there’s a good reason to wait until the plants are well-established; by then, chance of cold damage is reliably history. Early planted stakes would interfere with my trying to throw a protective blanket over a row of staked tomatoes should cold threaten.

With the base of a stake set a couple of inches from a plant and a 3 foot length of iron pipe, capped at one end and slid over the conduit’s free end, the stake pounds in easily with repeated lifting and forcefully lowering.Pounding in tomato stake

Indeterminate tomatoes are vines, but not vines that can climb by themselves. So they need to be tied to their stakes. Material for ties should be strong enough to hold the plants the whole season, and bulky enough so as not to cut into plants’ stems. Coarse twine or cotton rags, torn into strips, are good materials. I use sisal binder twine. 

The usual recommendation, when tying, is to first tie a knot around the stake tightly enough to prevent downward slipping, then use the free ends of the rag strip or twine to tie a loose loop around the plant’s stem. False! With every foot or so of growth, I tie a single loop loosely around stem and stake above a node; the string can’t slip down lower than the node.Tomato plant, tied

Pruning

Now for the pruning: Confine each plant to a single stem by removing all suckers, ideally before any are an inch long. A sucker is a shoot that grows from a bud originating at the juncture of a leaf and the main stem.tomato sucker

Go over your plants at least weekly, using your fingers to snap off each side shoot. (Cutting the shoots with a knife or pruning shear may transmit disease between plants as a blade touches cut surfaces.) Occasionally step back and refocus your eyes on the plant as a whole; I find that I sometimes overlook a sucker that has snuck up with two feet of growth I missed as I focussed on still small shoots just appearing from buds.

One final bit of pruning that some gardeners practice is to pinch out the growing tip of the plant when the stem reaches the top of the stake, then continue to remove any new leaves or flowers that form. This is a little chancy, since the effect depends on the maturity of a plant’s leaves and fruits. At worst, you reduce yield to a few clusters of fruit. But at best, your tomatoes are even earlier and larger. It may be worth a try on a couple of plants.

How do your tomatoes grow, up or sprawling. A case can be made for “up.” But you need the right variety, stake, and method of pruning. 

Upcoming GROWING FIGS IN COLD CLIMATES webinar

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Last reminder for GROWING FIGS IN COLD CLIMATES webinar. 

Monday, June 6, 2022, 7-9 pm Eastern Time

Cost: $35

Registration is necessary; register and pay (credit card or Paypal) at:
https://us02web.zoom.us/webinar/register/WN_4hqKduDNSyiuRGPBlmBObg

Contact me if you prefer to pay by check.

Learn what makes this subtropical plant so adaptable that you can harvest fresh fruit from it even in cold climates, and practical applications of this information. I’ll cover a few of the methods for being on your way to fig-dom, including winter care, pruning, varieties, and speeding up ripening. There’ll be plenty of time for questions.

San Piero fig, ripe

San Piero fig, ripe

NO MO’ NO MOW MAY(?)

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What and Why?

The Month of May has ended, as has “No Mow May.” If you’ve never heard of “No Mow May,” it’s the rallying cry of a movement that began in the UK, suggesting that all of us who nurture greenswards abandon our efforts for the month of May. In so doing, habitat and food, in the form of early blooming wildflowers such as dandelions, clover, creeping Charlie, and violets, would become more available to early season pollinating insects.No Mow May lawn

Let’s dive deeper into what “No Mow May” accomplishes, whether this movement has any drawbacks, and, finally, possible alternatives.

A lawn is typically a monoculture, or nearly so. Not mowing during this month when heat and rainfall spur rapid plant growth encourages more diversity, which makes environments more resilient.

Gasoline-powered mowers spew out great quantities of carbon dioxide and pollutants. Over the course of a year, one such machine pollutes the same amount as 43 new cars, each driven 12,000 miles! And all that noise. Not to also mention toxic pollutants entering the environment (13 billion pounds per year from lawns) and our collective lawns thirst for copious amount of water.

“No Mow May” puts a hold on all these environmental affronts, at least for the month.

Does It Fill The Bill?

Take a closer look at what this deliberate neglect has fostered. Peer at a no mow lawn, perhaps yours, and you’ll see some of the aforementioned wildflowers. Wait, though. Plants such as dandelion and creeping Charlie, are not native. Creeping Charlie beneath treesAnd dandelion, for one, can negatively impact animals and even other plants. Its pollen is nutritionally poor for bees, low in valine, isoleucine, leucine and arginine, all essential amino acids for honey bees. Problem is that bees can become faithful to one plant, so might fail to sufficiently pollinate other plants or ignore more nutritious pollen sources if they get started on dandelions. And dandelion’s allelopathic pollen inhibits seed development of some other plants.

Leaving the mower parked in the garage or barn for May will, of course, change the appearance of your lawn, a look that has been part of our collective aesthetic from the past. Local ordinances might even prohibit “No Mow May.”

Despite certain drawbacks, mown lawn is functional, providing a soft, inviting surface for lounging, for playing, for picnicking, and other civilized activities.

Monet's "Luncheon on the Grass"

Manet’s “Luncheon on the Grass”

Tall grass is not nearly so inviting, especially as mice and other rodents feel more secure from predators scampering beneath the cover of long grass. Ticks enjoy such habitat, and are carried around by the mice, increasing threat of Lyme disease and other tick-borne illnesses.

Okay, so it’s the end of the month and you’re ready to mow. It’s not going to be easy to plow through all that vegetation. And all those clumps of grass clippings? You’ll probably have to rake them up so the lawn doesn’t get smothered.

The grass itself isn’t going to fair well with the drastic end-of-the-month pruning. Grasses are healthiest if blades are cut back by no more than one-third their length. So two mowings may be in order to bring grass down to mown height. If you wait a few days between mowings , then clippings from the first cut have time to dry out, so you may be able to forgo having to rake them up.

When all is said and done, does one month of not mowing an established lawn really encourage a burst of wildflowers or other biological changes? Probably not. The “No Mow May” lawns that I see look mostly just like unmown grass.close up of No Mow May lawn

Alternatives

Probably the easiest way to get the best of both worlds, or at least some of both worlds, would be with “One Mow May”  or “Less Mow May” rather than “No Mow May.”

Or, replace part of the lawn with a garden, perhaps a wildflower garden, or even just areas with groundcovers rather than lawn.

My top alternative to “No Mow May” is what I’ve called Lawn Nouveau, an idea I had years ago that reflected my lack of time and enthusiasm for mowing the lawn. Here’s an adaptation of Lawn Nouveau, as I described it in the mowing chapter — yes, mowing is a type of pruning — of my book The Pruning Book (available here, signed, or from the usual sources):

The low grass is just like any other lawn, and kept that way with a lawnmower. Other portions are allowed to grow, and are mowed infrequently –- one to three times a year, depending on the desired look. Mowings from the tall grass portions must be raked up after mowing or else they’d leave unsightly clumps and smother regrowth, but they are good material for mulch or compost.Wildflowers in Lawn Nouveau tall grass

A crisp boundary between tall and low grass keeps everything neat and avoids the appearance of an unmown lawn. Tall and short grass can help define areas. Rather than straight edges and 90° corners, curves in bold sweeps can carry you along, then pull you forward and push you backward, as you look upon them. Avenues of low grass cut into the tall grass invite exploration, and, like the broad sweeps, can be altered throughout the season.Meadow view

The “tall grass” becomes more than just grass as other plant species gradually elbow their way in. Which ones gain foothold depends on the weather and frequency of mowing. Goldenrod in meadowAn attractive mix of Queen Anne’s lace, goldenrod, chicory, and red clover might mingle with the grasses in a dry, sunny area, with ferns, sedges, and buttercups mixing with the grasses in a wetter portion.Meadow withh monarda

I now have a one-and-a half acre meadow which, along with some lawn around my home, constitutes Lawn Nouveau here. No need for large property, though; my original property was 3/4 acre, and that’s where Lawn Nouveau began way back when.Small Lawn Nouveau

In Praise of the (Austrian) Scythe

My preferred implement for mowing the tall grass is a scythe. Not the so-called American type scythe, with a curved handle and stamped blade, which is put to best use decorating the wall of a barn. I use a so-called Austrian type scythe (purchased from www.scythesupply.com), which usually has a straight handle and is lightweight with a razor sharp, hammered-thin blade.

Much of my one acre meadow gets a once-a-year mowing with my tractor, but you’ll still find me out there early summer mornings with my scythe. Lee scythingIt’s a joy to step out in the dewy coolness and swing my scythe, the only sounds being that of birds singing and the scythe blade whooshing through the turgid, green stalks of meadow plants.

(For a short scything video, see https://leereich.com/video.)

KEEPING THE FAITH

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Transplant Shock

A recent telephone call to my sister caught her setting zucchini transplants in her garden. “Transplanting zucchini?” I queried. “Have some faith in nature.” Transplants on sale this time of year too often entice gardeners to set out set them out in the garden rather than drop seeds into furrows.Marigold 6-pack

I pointed out that not every plant likes to be transplanted. Tomato plants yanked out of the soil will resume growth in a few days if their roots are covered with moist dirt. Roots will sprout even if just a stem is in moist soil. But the roots of plants like corn, poppies, melons, cucumbers, and squashes (zucchini included) resent disturbance. Carrots, parsnips, and many other root crops also transplant poorly. Their taproots become the harvested roots. If bent or broken while young, forked, rather than straight, smooth carrots and parsnips result.

This is not to say that it is impossible to successfully transplant squash, poppies, and the like. Any plant can be transplanted if enough care is taken not to damage the roots. A plant doesn’t even know it has been moved when a large enough ball of soil is carried along with the roots. (To paraphrase Archimedes, “Give me a big enough shovel and I can transplant any plant.”) Enormous trees can be, and are, relocated if taken with sufficient roots (and money).

My sister told me that her zucchini plants were growing in plastic cell packs. If the roots were not yet crowding each other against the plastic, and if the plants were gently slid out of their containers, the transplants will survive. I’ve even heard of gardeners even transplanting carrots — very carefully, no doubt.

Is It Worth It?

Six pack of peas

Pea transplants for sale

Many vegetables could be easily transplanted, yet aren’t worth the effort. A friend transplanted peas one year. Granted, his peas were a foot high indoors when mine were just breaking through the ground out in the garden. But how many pea transplants can a gardener care for? I grow about sixty feet of double rows of peas in my garden, from which I expect about twelve pounds of peas. Each pea plant, though, yields only about a quarter of an ounce of peas. Who has enough space and time to sow, water, then transplant even two dozen pea plants for the paltry six ounces of peas those plants would yield?

Generally, plants whose seeds are sown closely spaced in the garden are not worth transplanting. In the flower garden, this would include alyssum, portulaca, and pot marigolds (though I admit to starting a few alyssum plants indoors so they would spread and flower sooner).

In addition to peas, some other vegetables not worth growing as transplants include spinach, mustard, and beans. Black Seeded Simpson and other leaf lettuces (sometimes referred to as “cutting lettuces”) are generally sown directly in the ground. While the plants are still small, I’ll run a knife near ground level every couple of feet or so slicing off their tops. For the next salad, I’ll choose new groups of plants to cut. Within a couple of weeks, plants are again ready for harvest.

Lettuce seedlings

Bibb lettuce transplants

Heading lettuces such as iceberg, bibb, and romaine are worth transplanting because each plant needs space in order to head up well. Alternatively, heading lettuce could be sown directly in the garden, then thinned to the appropriate spacing.

(I list dates for sowing and transplanting various vegetables, according to your region, in my book Weedless Gardening, available from the usual sources or directly from me here.)

Exceptions to Prove the Rule

“Trust nature,” I told my sister. “Sow seeds on the correct planting date in good garden soil, and they’ll germinate. Save transplanting efforts for vegetables like tomatoes and peppers, which need to be started early indoors in order to ripen their fruits in a reasonable amount of time. Or broccoli and cabbage, because individual plants yield a substantial amount to eat. Tomato, broccoli, and cabbage plants don’t object to being transplanted, and not too many transplants are required since they are set a couple of feet or more apart in the garden.”

Seeds which are particularly finicky or valuable (due either to scarcity or cost) also are worth growing initially in pots. Although hardy cyclamens (Cyclamen heredifolium) do self-seed under ideal conditions, I wanted to greatly increase my holdings. Cyclamen flower in a crannied wallThey’re a little finicky to sprout, so I collected seeds from one of my plants and planted them in a seed flat, where I could watch and nurture them individually, then transplant them to individual pots. Here it is, three years later, and later this summer, delicate pink flowers will hover like small butterflies above each of the ten fat tubers.

Sure, it may be worthwhile to start a few corn plants indoors, because fresh sweet corn is one of the ultimate gustatory pleasures of the vegetable garden. But is zucchini that toothsome?

GUT PLANTING

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Not My Usual Approach

I couldn’t help myself, so yesterday I broke protocol. After quite a few days of bright sunshine with daytime temperatures in the 70s, even the 80s a couple of days, I went ahead and planted all the tomato and pepper plants that I’ve been nurturing since their birth a few weeks ago — six weeks for the tomatoes, ten weeks for the peppers. Looking ahead, warm sunny days should follow, with night temperatures are predicted to dip down only into the 50s.Tomatoes for planting

My usual protocol has been to plant not with my gut, but with the calendar date. Over the years I’m come up with a detailed chart of when to sow and transplant different kinds of vegetables based on the average dates of the last killing frost. Here, that date is around May 21st. Or, it used to be. (That chart — which I included in my book Weedless Gardening — allows anyone anywhere to determine sowing and planting dates merely by plugging in the average date for the last killing frost for their garden. Last frost dates for specific locations are available online.)

As with other global warming trends, the average date of the last killing frost right here — meaning specifically in my garden, which is in a frost pocket — has been pushed back a week or more. In the past, I would wait until a week, even two weeks, after that last frost date to set tomato and pepper plants in the garden. The average frost date is just an average; that week or two made sure my plants wouldn’t be caught off guard by a clear, cold night that didn’t hew to averages and charts.

When it comes right down to it, early planting is a gamble. The odds were good, so I took the gamble. My actions were also shaded by my not wanting to repot all the seedlings that were soon to outgrow their containers, and my hankering to see my garden with lots of plants in it.Pepper, tomato, lettuce planted

Frost or Freeze

The word “frost” allows for some wiggle room. You’d think it meant any temperature below 32 degrees Fahrenheit. Not so. Temperatures between 29 and 32 degrees could be called a “light freeze.” Peppers and tomatoes sufficiently toughened up (“hardened off”) with some exposure to bright sunlight, cool temperatures, and wind can cruise right through a light freeze unscathed.

Moderate freezes, 25 to 28 degrees F., would cause some damage. A severe freeze, with temperatures below 24 degrees F. spells trouble for any tender vegetables plant. Sufficiently hardened off cool season plants, such as cabbage and its kin, lettuce, and chard, are usually fine even at those temperatures. 

In all this, whether or not damage or death occur must factor in how fast cold descends on the garden, and how long it sits around.

At this point, I’m confident that my plants will be fine. If Ol’ Man Winter decides to peek in again, I can always throw a cover — flower pots, sheets, row cover — over the plants to protect them from cold.

Upright Pepper Plants

Let’s shift gears and take a look at growing peppers, specifically, keeping them upright. My pepper plants, and perhaps yours, become top heavy with their weight of maturing fruit. Mine especially so because I don’t pick any until they have fully matured, turning red or whatever other color they sport at full maturity. Especially prone to toppling is the variety Sweet Italia, which I grow because of its especially luscious fruits which also ripen early.

I’ve tried various methods of keeping Sweet Italia’s fruit laden stems up. In the past, I grew them in those cone shaped, wire cages often sold for tomatoes, for which they are useless. Those cages get tangled together in storage and make weeding very difficult. My bamboo provides an excess of stakes of various thickness; three stakes next to a plant does keep the plant upright, but not its fruit-laden arms.peppers in garden

Twine woven in among the plants and tied to metal stakes set a few feet apart along the row held plants and most arms up, but scrunched everything together too much, cutting down light penetration.

This year my plants are going to stand up with the help of livestock fencing panels, cattle panels with 6×8 inch openings, and goat and sheep panels with 4×4 inch openings. With a bolt cutter I clipped them into one-square-wide strips. Each bed is home to two rows, about 20 inches apart, of peppers, with plants set 16 inches apart in the row. Sixteen inch spacing allows me to set the panel strips centered over the plants. For now the strips are on the ground beneath the plants.Pepper trellis

Once the plants grow large and start extending their arms, I’ll raise the strips with some bricks set every few feet as high as needed to do their job.

I hope this works, and welcome any comments on the prognosis. Do you have a method for successfully keeping your peppers from toppling or resting too many fruits on the ground? Perhaps your peppers grow unaided?

A WEBINAR AND A PLANT SALE

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Webinar: GROWING FIGS IN COLD CLIMATES

Harvesting your own fresh figs, which offer a very different gustatory experience from dried figs, is possible and easy even if you live where winters are cold. Even where summers remain cool. Once you know why fig allows this, various methods can lead you to fig-dom. I’ll cover the why, some of the methods, and detail the all-important methods of pruning.San Piero fig

Date and Time: Monday, June 6, 2022, 7-9 pm Eastern Time
Cost: $35
Space is limited and registration is necessary. Register and pay (credit card or Paypal) here, or at:
https://us02web.zoom.us/webinar/register/WN_4hqKduDNSyiuRGPBlmBObg

Contact me if you’d prefer to pay by check.

Plant Sale

This year the 14th(?) Annual Plant Sale will be held live, here at Springtown Farmden. Plants, available in limited quantities, include mostly fruit plants, including Nanking cherries, grapes, hardy kiwifruit, lowbush blueberry, highbush blueberry, hardy orange, and, of course, figs.

This year, there’ll also be lots of books (in addition to the ones I wrote), some for sale and some free. The books cover a wide range of gardening topics.

Date and Time: June 12, 2022, 9:30 AM – 1:00 PM
Location: Springtown Farmden in New Paltz, NY

Note: You must be (correctly) masked to attend this live sale.

 Nanking cherry, gooseberry, & lowbush blueberry

 

 

SPRING SEEDING: WHEN?

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Truth From a Thermometer

Stop by my vegetable garden this time of year and you might see one or more thermometers poking out of the ground. No, I’m not experimenting with a new way to monitor the soil’s health. Soil temperature can serve as a guide for timely sowing of seeds outdoors. Seed sown in soil that is too cold won’t germinate; just sitting there waiting for warmer weather, ungerminated seeds are liable to rot or be eaten by animals.Temperature in shallow soil

Lettuce, onion, parsnip, and spinach seeds can be planted earliest. They’ll germinate just about as soon as ice in the soil thaws. At the other end of the spectrum are seeds of melons and squash, which won’t germinate until the soil temperature reaches sixty-five degrees. The minimum temperature required for germination of other vegetable seeds is as follows: forty degrees for beets, cabbage and its kin, carrots, peas, chard, parsley, celery, and radishes; fifty degrees for sweet corn and turnips; and sixty degrees for beans, cucumbers, and okra. 

Temperature deeper in the soilThe above listing gives minimum, not optimum, temperatures for germination. Optimum temperatures might be even thirty degrees higher than the minimums, as in the case of celery which germinates quickest at seventy degrees. Waiting for the optimum temperature isn’t advisable, though. To delay sowing until the soil temperature reached the optimum temperature for pea germination (seventy-five degrees) would result in a midsummer harvest, when hot, dry weather turns peas coarse in taste and texture.

But What Temperature is Best?

For indoor seeding in seed flats, I use an electric, thermostatically controlled heating mat, waterproof and made for seed germination. With so many different kinds of seeds to grow, I can’t be twisting the thermostat dial up and down to suit each seed’s optimum. The temperature remains set at about 80 degrees. Which is why lettuce sown a couple of weeks ago still hasn’t sprouted.Heating mat

Each kind of seed also has a maximum temperature at which it will sprout. For lettuce, that’s about 80 degrees. I resowed a few days ago, setting the lettuce flat on the cooler greenhouse bench instead of the mat, and green leaves have already shown their faces. Other vegetable seeds notorious for sulking in the heat are parsnip, celery, and pea. Turnip is interesting for being eager to sprout anywhere in the broad range of 60 to 105 degrees!

For more details on temperatures needed for seed germination, as well as plant growing and charts and tables with lots of other stuff about growing vegetables, I highly recommend Knott’s Handbook for Vegetable Growers, available in hard copy or online.

Tips to Advance the Season

No need to twiddle your thumbs waiting for the soil to warm; the warming process can be speeded up. (I detail a number of ways to do this in my book Weedless Gardening.) A thick, organic mulch, though generally beneficial to the soil, insulates the soil and hence delays warming this time of year. So for early sowings, rake back the mulch to expose the soil to the sun. Once the soil is warm — about mid-June — replace the mulch to recoup its benefits.Raking up mulch

Where soil is not blanketed with mulch, warming can be hastened by forming small ridges oriented east and west. You plant seeds on the south faces of these ridges. With sunlight beaming directly down on these south-facing ridges, the soil there warms a bit faster than the surrounding soil. Soil warmed on ridges(For the same reason, here in the Northern Hemisphere, south-facing slopes are warmer than north-facing slopes. North-facing slopes ideal for planting peaches and apricots to delay their flowers to when there’s less possibility of a later spring frost snuffing them out.)

Another way to warm the ground for early spring planting is to grow plants in raised beds. In raised beds the soil warms early because it’s more exposed to ambient air temperatures. Raised beds are well-drained, so dry more quickly; it takes more heat to warm a wet soil than a dry soil.Raised beds

Changing the color of the soil surface affects its temperature. Black plastic mulch is unsightly, but it does warm the soil. Hide the plastic’s ugliness with a layer of bark chips and the plastic’s warming effect will be lost. In climates such as ours, where the soil is just marginally warm enough for vegetables like peppers, melons, and eggplants even in summer, the plastic mulch improves growth if left in place the whole season.

A top layer of compost on the ground darkens the soil in a more attractive manner than black plastic, though the effect on soil temperature is less dramatic.  Compost does, of course, confer other benefits to the soil, such as improving the soil’s physical structure and providing essential nutrients. These benefits are lacking with black plastic.

Natural Indicators

All these techniques warm the soil a little faster than it would otherwise. You can measure the effect with a soil thermometer, but a thermometer is not mandatory for determining when to sow seeds. The soil slowly but surely warms up at about the same rate each spring, so you can sow by calendar dates, subtracting a few days if you deliberately hasten soil-warming. Garden bed with compost

Since the soil temperature and spring blossoms are influenced by the same general warming trend, even better is to sow seeds according to what perennial or woody plants are in bloom. For instance, you might plant peas just as the forsythias blossom, and corn according to the traditional indicator — when oak leaves are the size of mouse ears. A soil thermometer should register about forty degrees in the first case, and fifty degrees in the second. 

 

Webinar planned: GROWING FIGS IN COLD CLIMATES

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Yes, you can be picking fresh fruit from your own fig tree even if you live in a cold climate! I’ve grown figs for decades, beginning in Wisconsin and now in New York’s Hudson Valley. 

Figs can be grown successfully in cold climates because, among other things, they are adaptable plants and have unique bearing habits.

Learn various ways to get plants through cold winters, how to prune the plants, how to harvest the fruit, how to speed ripening, and more. If you already grow figs, this webinar will help you grow more or better figs, and be able to manage them more easily. If you haven’t yet experienced the rewards of growing figs, you have a treat in store for you.

Monday, June 6, 2022, 7-9 pm Eastern Time

Cost: $35

Registration is necessary; register and pay (credit card or Paypal) at:

https://us02web.zoom.us/webinar/register/WN_4hqKduDNSyiuRGPBlmBObg

SOMETIMES CALLED SPARROW GRASS, SOMETIMES ASPARAGOS

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Many Reasons to Grow Asparagus

In my book Weedless Gardening, I begin the section about asparagus with the statement “Forget about the usual directives to excavate deep trenches when planting one- or two-year-old crowns of asparagus.” More about planting in a bit; let me first lay out my case about why YOU should grow asparagus.

With most vegetables, by the time you taste them fresh-picked somewhere, it’s too late in the season to plant them in your garden. Not so with asparagus. Asparagus spearBorrow a taste from a neighbor’s asparagus bed, or from a wild clump along a fencerow, and you’re likely to want some growing outside your own back door. Minutes-old asparagus has a very different flavor and texture (both much better) than any asparagus that reaches the markets. The time to plant is now.

A big plus for asparagus is that it’s a perennial plant, so once a bed is planted, more time is spent picking than any other activity. An established planting can reward the gardener with tender green spears for a half a century or more. My asparagus bed is thirty-six years old and about twenty-five feet long; on every warm day, the bed offers enough stalks for a meal for two.

Deer and rabbits don’t have a taste for asparagus so no need to plant it within the vegetable garden or any protected area. (My dogs have eclectic palates, and they joined in on the harvest until I made clear that asparagus was not dog food.)Asparagus growing through mulch Planting asparagus beyond the confines of the vegetable garden works out well because the lacy, green foliage stands as a backdrop for perennial flowers. Or, it can soften the line of a wall or fence.Asparagus in August

Traditional Planting Method is Unduly Hard

Now, back to what I wrote about planting asparagus in Weedless Gardening, (available, by the way, at the usual sources as well as, signed, from my website, here).

The traditional method for planting an asparagus bed entails digging a trench a foot or more deep, setting the roots — one-year-old roots establish best — in the bottom with a covering of a shovelful of soil, then filling in the trench gradually as the stalks grew.

Whew! I planted my own asparagus bed just deep enough to cover the upward pointing buds from which the roots radiate, and the plants do just fine.

The main reasons for the traditional deep planting were to protect the crowns from overzealous hoes or other tillage implements, and from knives during harvest. But I don’t till my asparagus bed. I just pile on some mulch every year. And I harvest by snapping the stalks off with my fingers, rather than cutting into the soil with a knife.Asparagus harvest

Gardeners with patience sow seeds, which need a year more in the ground than roots before harvest can begin. Seed sowing is straightforward, except that germination is slow. Soak the seeds in water for a few hours before sowing to shorten germination time.asparagus seedlings

Whether starting with seeds or plants, the bed needs to be planted in full sun, with eighteen inches between plants in the row, and four feet between rows.

Tune into Asparagus’s Life Cycle

Although asparagus roots live on year after year, the feathery tops turn brown and die back to the ground every fall. Asparagus, yellowing foliageThen, when the spring sun warms the soil, energy stored in the roots fuels growth of the spears. As the spears grow higher and higher, feathery green branches unfold. Photosynthesis within these green branches pumps energy to the root system, energy that keeps the roots alive through the winter and fuels early growth of spears the following spring, thus completing the plant’s annual cycle. (The true leaves of asparagus, which are the small scales on the stems, are much reduced in size and function; the green stems take on most of the job of photosynthesis for this plant.) 

Harvesting asparagus steals some of the energy that had been stored in the roots. The plant must build adequate reserves before tender stalks can be spared for our plates, and then each season left enough time to grow freely to replenish its energy reserves.

The first season of planting, no asparagus is harvested; if good growth was made the first season, some can be harvested the second season. The plants are ready for a full harvest by the third season. 

Full harvest means cutting all stalks from the time they first emerge until about the end of June. asparagusRemember, the plants do need some time to nourish their roots in preparation for winter. Following the last harvest, all new green stems are left untouched until their summer job is over, as they turn brown in the fall.

Asparagus grew wild along the shores of the Mediterranean before plants were transplanted to Greek and Roman gardens. The steaming dish of asparagus on my table today is virtually identical to the asparagus enjoyed by the ancients over 2000 years ago. Even our word for the vegetable is nearly identical to, and derived from, the Greek word asparagos. 

Asparagus came to America with the early colonists and has been cultivated extensively here since then. The red berries borne on female plants attract birds that spread the seed, so asparagus now pops up as an “escape” from cultivation along fencerows and roadsides.