HOUSEPLANTS THRIVE DURING MY CUBAN GETAWAY

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Water In Air, In Soil, In Reserve

My houseplants enjoyed my absence more that I expected. I thought it might be harder on them. After all, with spring in the air (indoors) for a few weeks now, they were all pushing out new shoots from the ends and along stems that had lain dormant all winter. Citrus, avocado, and amaryllis were even flowering, and rosemary was getting ready to flower.

Lack of water was going to be the threat, 5 days of it, while I was far away wandering up and down streets and in and out of alleys of Havana, Cuba.Havana street scene

Through winter, I had eased my houseplant watering chores by using “water siphons” (aka “hydrospikes” or “self-watering probes”). These porous ceramic probes, filled with water and pushed into the potting soil, have the thin, flexible tubes coming out of their caps plunked into mason jars filled with water. I knew well just how thirsty the plants were, watching the water in the reservoirs into which the tubes that connect to the ceramic cones drop daily, in some cases a cup or more per day.Automatic watering spikes

Plants cool off by letting water evaporate through little holes in their leaves, called stomates. So leaving the house thermostat set to cooler temperature was going to help slow water loss.

Evaporation is faster, whether through stomates or from the potting soil, the drier the air. Heat from radiators is less drying than that from the wood stove, our usual source of heat — also helping plants that might be pining away in my absence.

I poured water into the saucers in which each pot sits. As this water evaporates it creates a microclimate around nearby plants, a microclimate slightly more humid than that of the rest of the house, cutting down water loss from the potting soil and through the leaves. The humid microclimate was made more so by cozying plants in a cluster right up next to each other. Pebbles in the saucers bumped up this benefit by increasing the evaporative surface area.

To further help plants through their period of neglect, I filled the saucers with more water than usual, with the water level a smidgen above the bottom of the pots. As the potting mix dried, it could suck this water into the pot by capillary action. I don’t usually let water sit in the saucers above the level of the bottom of any resident pot because then the bottom of the pot becomes waterlogged, eventually leading to dead roots. I figured a few days would do no harm, and surely less harm than would drying out of the whole plant.

My final ministration was to cut open a clear dry cleaner bag and drape it loosely over the clusters of plants to maintain even higher humidity.Houseplants covered to maintain high humidity

The upshot: The plants did not miss me even a little. They looked healthy and happy upon my return, perhaps even more so than with five days of constant attention!

Visitando El Jardín Botánico Nacional

One day in Cuba I ventured beyond Havana for a tour of the Jardín Botánico Nacional, or National Botanical Garden, which is adjacent to Parque Lenin (Vladimir, not John) Park. We bounced along on a tractor-pulled wagon through a landscape devoted to plants native to Cuba, then on into a savannah of plants of African origin, to groupings of plants indigenous to Latin America, and on through other tropical climates and ecosystems.

A few greenhouses there create special environments. One was a tropical rainforest greenhouse, with humidity kept high with frequent, automatic watering. A houseplant such as maranta formed an expansive groundcover there, and other familiar houseplants, such as peperomia, philodendron, begonia,, and spathiphyllum, either spread all over the ground or reached heights you would never see in a house.

A dry greenhouse, the covering, this time, to shed rainfall, was home to succulents and cactii. One cactus that caught my attention, especially so with Cuba’s connection to the Soviet Union, was the “Russian soldier cactus.” The upper portion of this upright cactus was furry and brown, just like a Russian soldier’s hat. (As far as cool, common names the Cubans have for plants, another one was “tourist tree,” so-named for its red, peeling bark, just like the skin of pale tourists that get too much tropical sun.)Russian soldier cactus

Another Orchid!?

I’m very happy with my two orchid plants — Dendrobium kingianum, the pink rock orchid, and Odontoglossum pulchellum, lily-of-the-valley orchid. Both bloom reliably once a year, in winter, for over a month. 

But one of the orchids at the Jardín Botánico Nacional caught my attention for more than its beauty. Spathoglotis plicata, sometimes called Phillipine ground orchid, blossoms all year ‘round. It’s a terrestrial orchid that’s also easy to grow, not needing an excess of light. I’m going to get one to add to my collection.Spathoglottis orchid

Orchids can become an obsession; I hope I’m not about to fall down a rabbit hole.

MOVING ALONG, INSIDE AND OUT

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Figs Awakening

Even in the cool temperature (45 degrees Fahrenheit) and darkness of my basement, the potted figs can feel spring inching onward. Buds at the tips of their stems have turned green and are just waiting for some warmth to burst open. Or, if the plants just sit where they are long enough, the buds will unfurl into leaves and shoots. Which would not be a good thing.Fig bud awakening

My goal is to keep the plants asleep long enough so that they can be moved outside when they will no longer be threatened by cold temperatures. How much of a threat temperatures pose depends on how much asleep the plants are. Fully dormant, a fig tree tolerates temperatures down into the low 20’s. Even now, as they are just barely awakening, they can probably laugh off temperatures into the mid-20s.

If the buds expand into shoots and leaves, they’ll be burned by any temperature below freezing. And especially so if those new shoots and leaves get started indoors, where warm temperatures and relatively low light makes for overly succulent growth. Bright sunlight, even without freezing temperatures, can then cause damage.

Fig plants that start growing in earnest indoors get presented with two options. The first is to get them to the sunniest window in the coolest room so that growth is more robust, then move them outdoors after any threat of frost has passed — about the same time as tomato transplants get planted out. (Around here, that’s about the third week in May.)

The second option is to move them outdoors as soon as temperatures won’t again fall below the mid-20s. Temperatures below 32 will burn the succulent, new shoots and leaves, but plants will push forth new growth well-adapted to the great outdoors. If an Arctic blast is predicted, with lower that usual temperatures — that is, below about 25 degrees Fahrenheit — the plants need to be moved temporarily to the garage, mudroom, or other convenient shelter.

Different Strokes For Different . . . Figs

A fig’s treatment depends on the variety. Genoa, Excel, and Ronde de Bordeaux are three new varieties that I hope to taste this summer. They’ll get first-class coddling: Moved outside soon, then put into temporary shelter at the slightest hint that damaging temperatures could arrive. I might just put the others outside, and leave them there.Some figs of summer

The Kadota fig gets planted, in its pot, right in the ground. Its roots will grow out through all the holes I drilled in the side and bottom of the pot so the plant becomes self-supporting, waterwise, until fall. I’ll plant it out soon, even though once it’s planted, it’s staying put all season long. (I have a backup plant.)

Too Weird To Eat

Moving forward into spring — on into late spring — brings dogwoods into bloom. Blossoms of our native flowering dogwood (Cornus florida) will soon be followed by those of kousa dogwood (C. kousa), and also called Japanese or Korean dogwood), native to east Asia.

The flowers of both species are very small and pretty much green. “Not so!,” you say, thinking back to last spring’s show of large white or pink petals. Those large white or pink things are, in fact, not petals, but bracts, which are modified leaves that, admittedly, serve pretty much the same function as petals, that is, to look pretty, attract pollinators, etc.

Over the years, the spring show from flowering dogwoods has become sparse because of powdery mildew and other diseases. Which is why kousa dogwood, which is disease resistant, has been increasingly planted.

Flowering dogwood can have either pink or white flowers — whoops, I mean bracts. Until recently, kousa dogwood came only in white. But now, breeders at Rutgers University, after decades of work, have introduced Scarlet Fire kousa dogwood, a cold hardy (Zone 5 to 8), disease resistant variety bearing pink bracts.Cornus kousa fruit in summer

The flowers of kousa dogwood, whether pink or white bracted, are followed by edible fruits. The round fruits are the size of a quarter, dark pink, and very weird-looking. To me, they look like water (naval) mines, not a very friendly association for a fruit. Their appearance has also been described as that of a sea urchin shell, also not very gustatory. Inside, the flesh is sweetish and mealy, something like a cross between mango and pumpkin — not my two favorite flavors, but even if they were, those dark pink water mines are too off-putting in appearance for me to more than sample them (just so I could report on their flavor).

Still, kousa fruits add to the show from the flowering bracts and the healthy foliage.

HINTS OF SPRING, REMEMBRANCE OF SUMMER

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Greenery, For Humans And Ducks

Spring has come early, as usual, in my greenhouse. Growth is shifting into high gear as brighter sunlight fuels more photosynthesis and warms the greenhouse more and for a longer time each day. Giant mustard plants, which provided greens all winter, are no longer tasty now that they have shifted their energy to stalks topped with yellow flowers. No matter. I’m digging the plants out and sowing lettuce seeds.

Paths in the greenhouse are carpeted in green — mostly from weeds, mostly chickweed, which is also soaking up the sun’s goodness. No matter. I’m also digging these plants out before they go to seed and threaten takeover of the greenhouse.Greenhouse weeds & claytonia

To take over the greenhouse, the chickweed would have to do battle with claytonia, which already has self-sown to  bogart much of the greenhouse floor. Fortunately, the claytonia is good fresh in salads.

Chickweed is also good — to some people — for eating. But not for me. My ducks, however, love the stuff. So it’s a win-win situation. I weed the greenhouse paths, gather together a pile of chickweed, then throw it to the ducks as I walk past them on my way back to the house. They rush over to reach it soon after it hits the ground, gobbling it up at a frantic (for a human) pace. Good thing they don’t have to chew.Ducks eating weeds

The ducks also enjoy the flowering mustard plants which, along with the chickweed, transmute into delicious duck eggs.

Bottled Summer Goodness

A couple of weeks ago I finished off the last of the elderberry fruit syrup I made this past fall. No fruit could be easier to grow than elderberry. In just a couple of years, the bushes have grown to enormous size, their clusters of creamy white flowers bowing to the ground at the ends of stems late each spring. Later in summer, those flower clusters morph into blue-black fruits, which, admittedly, aren’t very flavorful plain (and shouldn’t be eaten raw).Elderberry blossoms

The only care I’m planning for my plants is to prune them every year or so. Pruning will entail cutting some of the older stems to the ground to make way for younger, more fruitful stems, as well as shortening any branches that arch down so much that their fruit would rest on the ground.

In summer, I stripped the ripe fruits from their clusters into a half-bushel basket, and, postponing what to do with them, froze them. Come fall, I cooked them in a little water, added some maple syrup, crushed them with a potato masher, and then jarred them up.Elderberry harvest

Why all this trouble for a fruit that’s not very flavorful? Because the berries are so healthful! Studies have shown them, or their extracts, to be “supportive agents against the common cold and influenza.” Other benefits have also been ascribed to use of elderberry, but common cold and influenza are enough for me.

Now that I’m out of elderberry syrup, I already feel a slight cold coming on.

Timing Is Important

Back to the greenhouse . . .  and sowing seeds of the cabbage family (Brassicaceae), also called crucifers. Which gets me thinking back to last fall when a friend was bemoaning the lack of fat sprouts and the puny growth of his brussels sprouts plants. I asked when he sowed the seeds. “Back in early August,” I think he said. At any rate, back in summer.

It’s no wonder he wasn’t going to be harvesting brussels sprouts. The plants need a long season to mature, from 90 to 120 days, depending on the variety. For best yields, this means sowing seeds now, growing them as transplants for about 6 weeks, and then planting them out for harvest that will begin in late summer. At the very least, the seeds could be planted directly in the ground in a few weeks.Crucifer seedlings

I’m sowing other crucifers now, not because they need such an inordinately long growing season, but so that they can be harvested in late spring and early summer. First harvests will be of miniature bok choys, and then cabbages and, if I grew them (I don’t), broccoli and cauliflower. Kale is the most versatile member of the family — and the one I grow in greatest quantity — amenable to sowing anytime from now until later in summer for harvest in late spring, through summer, and on into fall and winter.

Mustard, turnips, and arugula are also crucifers, the whole family most easily identified by their four-petaled blossoms in the shape of a cross, the root of the word crucifer.

‘SHROOMS

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Home-Grown Oysters

Move over shiitakes, you fancy, reputedly healthful mushrooms offered on supermarket shelves and at farmers’ markets at high prices. Make way for oyster mushrooms.

Many of us have chosen to grow shiitakes rather than pay the high prices for them. This means laying in a stock of freshly cut hardwood logs and riddling them with holes that are plugged with inoculated dowels pieces, then sealed with wax. A dose of patience is also needed for home-grown shiitakes, even after going through all that trouble, because a year is needed until first harvest.

My logs, from two and three years ago, yielded mushrooms last spring and autumn. But those logs are sleeping now; what about mushrooms now?Shiitake logs

Enter oyster mushrooms. Oyster mushrooms are much more cosmopolitan about their nourishment. And planted now, harvest could begin within a few weeks.

The basics of growing any mushroom are the same. You inoculate a substrate (some material high in cellulose) with purchased or home-grown mushroom spawn. Fungal threads colonize the substrate and then, after a certain amount of time or in response to some stimulation, such as being dunked in water, mushrooms pop out of the surface of the substrate. In between short rests, they’ll pop out repeatedly until the substrate is exhausted. Then you start again with a new inoculation.

Toilet Paper Mushrooms!?

A few years ago, I grew oyster mushrooms on nothing more than a fresh roll of toilet paper, which provided a conveniently configured source of cellulose. I got the spawn for inoculation from Field & Forest Products (their TeePee™ kit). All that’s needed is to pour boiling water over a roll of fresh toilet paper, let excess water drain off, then put the roll into the plastic bag that is provided.

I inoculated, as directed by filling the center tube with the mushroom spawn and sealed the bag closed. Every once in a while I opened the bag to mist the inside with water, and watch the fungus grow its way out into the paper. After colonization is complete, mushrooms started popping up from the top of the roll.

Okay, my wife did express some aversion to eating food growing out of toilet paper. And the whole setup, admittedly, is not really all that attractive.

Coffee Grounds, Another Substrate

Not to give up on winter mushrooms, I could try growing oyster mushrooms on another readily available substrate: coffee grounds, a waste product from coffee shops, bakeries, and fast food joints. I also remember a previous foray into “espresso mushrooms” a few years ago. The Pohu strain of oyster mushrooms are among the best for coffee grounds.

To inoculate, you just break up and mix the spawn, a compressed mass mixed with sawdust, with (clean) hands and/or a knife in with the coffee grounds. The mixture then goes into a (clean) bucket having drainage holes, which, after a thorough watering, is covered with the plastic bag

After sitting in a bright location and misted daily, the coffee grounds becomes covered with  fuzzy, white fungal threads. Within a few weeks, fat mushrooms swell up from the substrate, ready for harvest when their caps become just concave.

In my previous experience with espresso mushrooms, I remember an invasion of fruit flies having a field day on and in the coffee grounds. Or were they fungus gnats? Avoiding overwatering should keep fungus gnats in check, and fruit fly season is past, so espresso mushrooms are worth another try.

The nice thing about growing oyster mushrooms on coffee grounds is that there’s no need to purchase new spawn when production slows. A nice chunk of the exhausted coffee grounds can be used to inoculate some fresh grounds.

The cleaner everything that comes into contact with the spawn and the substrate right from the start, the less chance for contamination and the longer the process can be kept going. It can become an indoor game, to see how many oyster mushroom cycles can be grown before new spawn is needed again. In addition, of course, there’ll be some tasty harvests.

An Early Spring, For Shiitakes

Now that I think of it, I could be sitting down to a meal with fresh shiitakes — just fool some logs into thinking it’s spring. Which it is, in my greenhouse. I’ll move a couple of logs in there, where I’ll bet the warmth and high humidity will soon pop out some mushrooms.

A WINTER DAY WITH SPRING IN THE AIR

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Spring Dreams

Looking out a window today, all I see is white, a thick blanket of snow covering the ground and howling winds periodically puff clouds of it swirling into the air. Still, I can feel the pull of spring. Perhaps it’s the bright sunlight. Couple that with the colorful gardening magazines and catalog strewn on the kitchen table, and how can I resist vicarious planting — by ordering plants instead.

David Austin roses, whose blooms have the look and fragrances of yesteryear (pastel colors and blowsy form), and the repeat blooming of pest-resistance of presentyear roses, are always a draw. Every year, new varieties are offered, some, I’m gad to see, that are cold-hardy to zone 4.

Rose, L. D. Braithwaite

Rose, L. D. Braithwaite

And m–m-m-m, the thought of picking fresh, ripe sweet cherries is also enticing. No, no! I ordered and planted what was allegedly a self-fertile Compact Stella cherry tree seven years ago. It wasn’t compact and it has yet to bear a cherry. I tell others that sweet cherries are a poor bet around here because of winter cold, spring frosts, and various inset and disease pests. And, after that, even if fruits do develop, birds will likely eat them. I should have been listening when I dispensed that advice.

The cherry tree has one more season to prove it’s worth. If it doesn’t, I have a replacement plant (hardy orange, Citrus trifoliata) anxiously waiting in the wings.Hardy orange

I’ve always wanted to plant a magnolia, of which there are many newer and older varieties, but where could I plant it? Now that I think of it, I did plant a magnolia last spring. It died. And a few years back, I planted a sweetbay magnolia (Magnolia virginiana) purchased on an impulse at a nursery a few years ago. I remember planting it, but not what happened to it, except that it’s no longer around.

The magnolia that I really want to plant is southern magnolia, Magnolia grandiflora. This large evergreen gracing many homes from Virginia southward with its large, glossy, dark green leaves and it’s large, lily-white, fragrant blossoms seems to politely call for a chair in its shade, a frosty mint julep on the armrest.

Problem is that southern magnolias are not hardy here — yet. I know of a gorgeous tree about an hour south of here and two varieties — Edith Pogue and Bracken’s Brown Beauty — are hardy below zero degrees F. It hardly gets below zero here these past few winters and, with global warming . . . ?

Yes, it is hard to keep my wits about me as spring approaches, and will be increasingly so as spring edges in. “I will not buy another sweet cherry tree, I will not buy another apricot tree (even more problematic), I will not buy another magnolia (yet), . . .”

Dorris, I’d Like To Meet You

Uh oh, another new variety of filbert from the breeding program at Oregon State University. This variety, Dorris, is, like some of its recent predecessors, immune to the eastern filbert blight that has for so long made filbert growing east of the Rockies unfeasible. They’re breeding blight-resistant filbert in Oregon because the blight fungus has made its way west.

Filbert nut harvest last fall

Filbert nut harvest last fall

But eastern filbert blight is a capricious fungus, sometimes changing in a way that let’s it attack even “resistant” filberts. So I’m constantly cutting down diseased filberts and replanting “resistant” ones. One of the newest varieties, which will get a spot in the line of filberts that draws my eyes and footsteps along the edge of  meadow, is Dorris.

Good luck Dorris.

Making Trees

Some trees and shrubs coming to my garden this year are going to be home-made, that is, created by me from seeds, cuttings, or grafts. To that end, I recently collected hackberry seeds as well as scions (for grafting) of persimmon, pear, and cornelian cherry, and packed them all away in an insulated box in my garage. I will deal with them in a few weeks.

Gathering scionwood

Gathering scionwood

Collecting scionwood for grafting segue nicely with pruning. From the prunings strews about on the ground, I cut and save one-year-old stems into foot-long sections.

NO SIGN OF SPRING HERE YET, BUT . . .

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The Onion Cycle Begins Again

Early February, February 6th to be exact, was the official opening of my 2017 gardening season. No fireworks, waving flags, or other fanfare marked this opening. Just the whoosh of my trowel scooping potting soil into a seed flat, and then the hushed rattle of seeds in their paper packets. And the grand opening was not for a flamboyant, who-can-reap-the-earliest-meal of a vegetable like peas or tomatoes.

No, the grand opening for the season is rather sedate: I sowed onion seeds in mini-furrows in a seed flat. Why onions? In addition to the fact that I love the flavor of onions raw and cooked, onions need a long growing season. The summer growing season is cut short because the plants stop growing new leaves to put their energy into swelling up their bulbs when daylengths grow sufficiently long, 14 hours long, to be exact. Around here, that happens sometime in May. The more leaves the plants make before then, the bigger the bulbs. Hence my early planting.Sowing onions indoors

So I poured about a 3-inch depth of potting soil into an 18 by 24 inch plastic tub in which I had drilled drainage holes, and then made seven parallel furrows in the soil into which I dropped onion seeds. This year I’m growing New York Early, Patterson, and Ailsa Craig. (I also sowed leeks in one of the furrows.) After closing up the furrows, I watered, covered the tub with a pane of glass, and put the tub on a heating mat set at 75 to 80° F.

Done. The season has begun.

 

Other Beginnings

There are so many ways to grow onions. Let me count the ways, some other ways.

1, and easiest, is to just plant onion sets, those mini-onions you can buy to plant as soon as the ground outside warms and dries up a bit. One downside to sets is that the variety selection is very limited. Not only limited, but also restricted to so-called “American-type” varieties, which keep very well but are very pungent and not very sweet. Onion sets that are too large — larger than a dime — tend to go to seed. Plants going to seed look very pretty but don’t make bulbs for eating.

Number 2 method overcomes one of the limitations of method number 1: Purchase onion plants, which are growing plants, with leaves. The sweet “European-types” — Ailsa Craig, Sweet Spanish, and Granex, for example — are available in this form. The plants are grown in fields in the South, and there’s the potential to bring a disease into the garden on these plants. Also, “organic” onion plants might be hard to find.

Setting out onion transplants

Setting out onion transplants

Method number 3 is the most involved. (I’ve never tried it.) Grow your own onion sets. The trick is to sow the seeds outdoors densely enough so that they bulb up while still small — dime size. Once bulbs mature, their harvested to store for winter, and then planted in spring just like the sets in Method 1.

Method number 4 is fairly easy, and that is to sow seeds of the Evergreen variety onions right in the ground in spring. This variety never forms bulbs but makes tasty green onions, or scallions. It’s also perennial, so any scallions left in the ground will multiply year after year. The downside here is that you don’t get onions for winter. I grow these every year and do get them for winter use also, in my greenhouse. 

Method number 5 is easiest of all. Grow Egyptian, or Walking, onions. This is another perennial onion. It “walks” by forming bulblets on top of some stalks. The weight of the bulblets pulls down the stalk, and when the bulblets touch ground, they root to make new plants. The new plants eventually send up bulblet-topped stalks which likewise bend to the ground, etc., etc., walking the plants around. To me, Egyptian onions are all hotness with little other flavor. I no longer grow them.

Walking onions

Walking onions

I learned of method number 5 from Jay at Four Winds Farm. Simple enough. Just sow the seeds outdoors as soon as the ground is warm enough and dry enough for a nice seedbed. A nice seedbed is key here, because onions compete very poorly with weeds and the goal is to get the seeds to germinate as fast as possible. I tried this last year and the bulbs ended up pretty much the same size as those from the plants I sowed last February and then transplanted into the garden in April. So I get a wide choice of varieties without having to start the seeds in February. Thanks Jay. (I’m growing transplants and direct seeding this year, just to make sure.)

My Pea Planting Will Not Be On St. Pat’s Day!

My early February onion-sowing date isn’t some magical date. My greenhouse is only minimally heated, making for very slow growth early in the season. Growth picks up as sunlight grows more intense and further warms the greenhouse. A week or more difference in sowing date early in the season doesn’t translate into that much difference in growth near harvest time.

The same goes for pea-planting, which is attended by more fanfare than onion planting. Many gardeners rush to get their pea seeds planted by St. Patrick’s day, but planting a week later doesn’t delay that harvest by a week. Perhaps by a couple of days or by a few hours, depending on the season. And anyway, St. Patrick’s day might be the traditional date for planting peas in Ireland, but it would be way too early in Maine and way too late in Georgia. I plant peas here in Zone 5 on April 1st, give or take a few days.

In my book Weedless Gardening, I have a chart that shows what and when to plant, whether as seeds, indoors or out, or as transplants, for all regions. All you have to do is plug in your average date for the last killing frost of spring and the first killing frost of autumn. This date is available from your local Cooperative Extension Office. 

THE WEATHER WON’T PUSH ME AROUND

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Breaking (Pruning) Rules

Snow squall or not, I just had to get outside. Not enough snow for a cross-country ski, but, after too much time indoors, I had to do something outside.

I was driven to break a fundamental rule of the garden. I pruned, and that’s a no-no. Pruning is best delayed until at least after the coldest part of winter is over, ideally closer to the time when warmth and sun are stirring buds to swell in preparation for their final burst. I did rationalize that any pruning now would leave me that much less to do amidst the hubbub of spring gardening activities.

I wasn’t indiscriminate in trespassing this Rule of Gardening. The plants that I pruned were gooseberries, which are very cold-hardy plants so are unlikely to suffer any cold damage as a result of untimely pruning. Also, no need to wait, as is done with peaches, for growth to begin to see which branches have died back from winter cold; none ever do so on a gooseberry bush.

Pruning without spring breathing down my back made for a very relaxed pruning session. I had plenty of time to pay attention to details and prune a little differently than in the past.

Gooseberries bear fruits on stems that are 1-, 2-, and 3-years-old, so the usual method of pruning is to cut away any stems more than 3-years-old and remove all but six of the sturdiest 1-year-old stems. The pruned bush, then, is left with a half-dozen each of 1-, 2-, and 3-year old stems. Each year a bush is renewed as oldest stems are removed, and new grow kept vigorous and healthy as excess young stems are thinned out.

Gooseberry before & after pruning

Gooseberry before & after pruning

The gooseberry bushes always bear many more berries than we can eat, and their weight bows the branches to the ground. So this year I decided to also prune each side branch on the older stems back to a couple of inches long. I’ll reap fewer berries, but those that remain should be larger and more accessible among the thorny stems.

Great Gooseberries

Is it worth mentioning such details about growing gooseberries? After all, who eats gooseberries these days? To most people, a gooseberry is a small, green, tart berry suitable only for pies, jams, and fools (a dessert made by folding cooked, sweetened, sieved gooseberries into whipped cream).A bowl of fresh gooseberries

If small, green, and tart is your idea of a gooseberry, you’ve never tasted a so-called dessert gooseberry. Dessert gooseberries are sweet and flavorful right off the bush; they are, as Edward Bunyard wrote almost a hundred years ago in The Anatomy of Dessert, “the fruit par excellence for ambulant consumption.” (He was from England, where gooseberries are more appreciated and known than here.)Gooseberry varieties on a bench

Only certain gooseberry varieties warrant the label “dessert gooseberry,’ of which I grow about a dozen varieties. My favorites include Hinonmakis Yellow, Poorman, Black Satin, Webster, Red jacket, and Captivator. Their sweet flavors carry wine-y overtones and reminiscences of plum or apricot. Some have soft skins, others have firm skins that explode with the flavorful, sweet juice when you bite into them. I devote a whole chapter to the history and varieties of gooseberries as well as how to grow them and where to get them in my book Uncommon Fruits for Every Garden (available from the usual sources and, from me and signed, at my website).

Back Indoors, But Still Gardening

Frozen fingertips eventually drove me back indoors. But I’m now on a gardening roll, spurred on further by a box of seed packets that arrived in the mail.Lettuce seedlings

Lettuce, claytonia, and celery from the greenhouse have been filling our salad bowls all winter. As these plants wane or go to seed, we’ll need more. So today I sowed seeds of Black-Seeded Simpson, Romaine, Buttercrunch, Blushed Butter Cos, and Majestic Red lettuces. Some I sprinkled into seed flats that can be kept warm for quick germination. Some I sowed right in the ground beds in the greenhouse; they’ll germinate more slowly but hold their quality longer than those that are pricked out from seed flats into “cells” and then into the garden.

Sometime soon, I’ll grab my pruning shears and get back to the gooseberries. And then on to the grapes, the kiwis, the apples, the pears, the . . . 

IN WITH THE NEW, STILL WITH THE OLD

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Scale Attack Beginning!

As if to ring in the new year, scale insects are starting to make their presence known. These insects crawl around as babies, find nourishing spots on leaves or stems, insert their feeding tubes, and then spend their days sucking plant juice. Carbohydrates and sugars are what result when sunlight and chlorophyll get together, so longer days may already be making plant sap sweeter and more plentiful, much to the liking of these suckers.

Armored scale on staghorn fern

Armored scale on staghorn fern

I encounter two kinds of scales on my houseplants. Each armored scale looks like a small, raised, brown tab. Cottony cushion scale looks like a small tuft of white cotton. As either kind feeds, it exudes a sweet honeydew that drips on leaves, furniture, and floor, and eventually becomes colonized with a fungus that airbrushes those sticky drippings an unappealing smokey haze.

(Scale insects are often problems on trees and shrubs outdoors. I’ve never had any problems outdoors probably because natural predators, of which scale insects have many, can do their job. Once indoors in autumn, houseplants lose the benefits of these natural, outdoor predators. )

Repeated sprays last autumn of “horticultural” oil smothered the creeping, crawling baby scales as they were looking for homes on houseplants. I do all this spraying outdoors, where it is most convenient, before the plants come indoors for winter. None have turned up yet on the kumquat or the staghorn fern, both of which have been scale magnets in the past. I don’t see any on the bay laurel, another magnet, but I do see and feel the tell-tale sticky honeydew.

And . . . Counterattack

Cute, little white tufts of cottony cushion scale are starting to dot the undersides of strawberry guava’s leaves. It’s not surprising: I received this plant last autumn, already with scale, and it was too late then to start spraying with oil. As autumn progressed, the undersides of its leaves became increasingly covered with those white tufts.

Cottony cushion scale

Cottony cushion scale

Repeatedly, over the last few months, I have fought back the buggers mano a mano by dipping cotton swabs in alcohol and methodically cleaning them off each leaf. (The plant is young and its leaves are large and few.) The last cleaning was especially thorough but some eggs evidently survived. Time to get out the alcohol and swabs again.

Mmmm, Tomatoes, In Planning Stage

Like the scale insects, I feel the distant tug of spring and spring seed orders are complete. With most vegetables and flowers, I’m pretty picky about variety so have to rely on mail order sources for my seeds.

And especially so with tomatoes: I refuse to waste time and space growing anything but the best tomatoes (to me), which makes me very wary of trying new varieties. My own tried and true varieties — flavor is what I’m after — include Belgian Giant, Sungold, Anna Russian, San Marzano, Amish Paste, Rose de Berne, Nepal, Valencia, Cherokee Purple, and Blue Beech.Heirloom tomatoes

Every once in a while I’ll also grow a few others, but only if they come highly recommended from a reliable source and especially if they are an “oxheart” or “black” fruited variety. Not even worthy of consideration is any “determinate” variety because their leaf to fruit ratio is too low for good-tasting fruit. The seed catalog or seed packet itself should say whether a variety is determinate or indeterminate. This year’s tomato newbies include Rosella Purple and Dwarf Sweet Sue, both recommended by a reader of this column.

I highly recommend growing tomatoes from seed. It’s easy, especially if the seeds are sown in a timely manner, which is about 6 weeks before the average date of the last killing frost of spring — about April 1st here in USDA Hardiness Zone 5.

 

Onions, Last Year And This Year

It’s really not all that early to be ordering seeds. My date for sowing onion and leek seeds is February 1st. New York Early, Copra, Sweet Spanish, and Ailsa Craig are three onion varieties that did well for me last season, and will be returning for an encore. Last summer’s onions still hang in braids from the basement rafters, ready to be pulled off as needed to chop into a pan for roasting with sweet potatoes, into the soup pot with chickpeas and kale, and other savory dishes for weeks to come. Onion braids in basement

 

EVERYTHING’S EASY, FOR NOW

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An Easy Orchid

Orchids are one group of plants I’ve regularly sidestepped. It seemed to me that if you grew orchids, you became crazed over orchids, to the exclusion of other plants. You then fill your home with as many of the over 20,000 species as you can cram onto your windowsills. I feared being led down that path.

My sidestepping took a turn into orchid-land 25 years ago when a local orchid enthusiast gave me a plant of Odontoglossum pulchellum, which I today learned has also been called lily-of-the-valley orchid. But more importantly today, the plant is in bloom. Blossoms from this plant are no rare occurrence; it’s bloomed every year for about the past 20 years, some years around now and other years waiting until February to unfold.Odontoglossum pulchellum orchid

Odontoglossum pulchellum doesn’t sport knock-your-socks-off, traffic-stopping blossoms; instead, they have a soft, subtle beauty. Right now, delicate, arching flower stems rise up from clusters of torpedo-shaped, green pseudobulbs that are perched up out of the “soil.” Eight to 10 dainty, waxy, white blossoms line up along each flowering stem and waft a sweet fragrance, more like paper-whites than lily-of-the-valley to me, that transports me to spring.

I get all this for very little effort and without becoming orchid-crazy. For years, I didn’t know the name of my plants so couldn’t even look up how to grow them. Rather than pot them up in any special orchid soil, I merely mix an equal volume of wood chips from my outdoor pile into my regular, homemade potting soil, along with a bit of soybean meal for extra nitrogen. I keep the plants in a sunny window in winter and sometimes move them outdoors in summer, dividing and repotting the pseudobulbs to make new plants.

For this bit of effort, I get fragrant, white blossoms every winter, and they last for at least a month. Odontoglossum pulchellum is easy to multiply yet I’ve happily managed to restrain myself to keeping only 3 or 4 plants after I’ve divided and repotted them each spring.

Easy Celery

Growing good celery demands a gardener’s greatest skill, and this year, in the greenhouse, I have the finest celery I’ve ever tasted or grown. The stalks are large, thick, juicy, even a little sweet. Unfortunately, I’m not sure I can take credit for this horticultural achievement.

Every summer I sow celery seed to transplant into my minimally heated greenhouse to provide stalks for salads and soups throughout winter. I do take credit for selecting a good variety: Ventura. I also take credit for providing good soil conditions; each year I slather an inch or so of ripe compost on all the beds in the greenhouse. And I’ll take credit for providing timely watering, with drip irrigation until a couple of weeks ago and by hand through winter.Self-sown Ventura celery

Ventura is an open-pollinated, rather than a hybrid, variety, which means that I can save my own seed for replanting each year. Beginning a few years ago, I’d allow one or two of the greenhouse Ventura plants that began to form flower umbels to do their thing and make seed, which they did prodigiously. I’d collect seed for planting the following season’s outdoor and indoor celery.

Some of those seeds would drop to the ground and germinate right in the greenhouse. These “volunteers” sometimes grew into seedlings as good or better than the plants I would later transplant back into the greenhouse.

So a couple of years ago I decided to let the celery self-sow freely in the greenhouse. Later in winter, I’ll transplant some of those seedlings into pots for eventual planting out in the garden.

In the greenhouse, I thin out excess seedlings, keeping the largest ones, which are already large enough for harvest. The stalks, especially welcome in winter, are, as I wrote above, “large, thick, juicy, even a little sweet.” I like to think I had a hand in horticultural achievement.

And Nothing To Do (For Now)

Nothing like a little snowfall to clean everything up in the garden. December 11th was the date of the first snow, followed by a second one on the 17th. The white blankets covered the pile of crocosmia leaves lying on the ground and waiting to be carted over to the compost bin, some weeds that sprouted in the mulched area beneath the dwarf apples, some of the smaller plants I haven’t yet cleared from vegetable beds, and numerous other messy distractions. The whole view was knit together in the sea of whiteness.Winter garden scene

Spells of warmer weather and bright sunshine have eroded away some of the snow, mostly taking the fluffy, white lines and dots that rested atop fences and their fenceposts. The ground, as I write, is still pretty much covered in a white blanket. While I’m enjoying the wintry scene, I can forget about about the few odd jobs still left to do that are patiently waiting beneath the the snow.

NUTS, SOME GOOD, SOME BAD, AND NEW(!) PLANTS

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A Good Harvest, But . . .

The black walnut harvest was abundant this past fall. Back in October, we gathered about a dozen 5-gallon buckets of of unhusked nuts, and, after husking, cleaning and drying them, set them in the cool, dry, squirrel-proof loft of our garage/barn (gabarn?).

The nuts are now sufficiently cured and ready for cracking. Two tools have made quicker, easier, pain-free, and more effective the once difficult and thumb-threatening job needing a concrete floor and a hammer. The Master Nutcracker makes elegant use of cogs and levers. For any nutmeats still gripped in a piece of shell, a “diagonal cutting plier” nips the shell piece to create a fault line that opens to drop out a piece of nutmeat, or to twists off a piece not fully cracked.Black walnuts and Master Nutcracker

This year’s harvest was from two trees. Most was gathered from the ground beneath a decades-old tree. That tree grows on what, in spring, is periodically waterfront property when the swale that it borders fills with rushing water. The other tree sprouted in well-drained soil a few years ago at the edge of woods along the north edge of our property. Now with an 8-inch diameter trunk, it began yielding nuts in earnest only a few years ago.

The opening day of nut-cracking season has highlighted the difference in nuts. Nuts from the younger tree not only are significantly larger, but they’re all well-filled with nutmeats that come out in large pieces. The old tree has yielded too many nutmeats that are dark brown and shriveled, or totally dried out, black, shriveled, and inedible.Good nuts and shriveled nuts

Genetics could be at play. Although both trees are black walnuts, each is a distinct individual within the species. Water might also figure in. Periodic flooding in the spring might leave too many of the old tree’s roots gasping for air at critical moments in nut development. Perhaps the old tree is still recovering from being swamped in water a few feet up its trunk during hurricane Irene back in 2011.

Perhaps it’s age. Probably not. Black walnuts are long-lived trees and I assume their fecundity goes hand in hand with their longevity.

Up to a few years ago, the large, old tree bore regular and reliable nuts that were plump with nutmeats.

Winter Dreaming

You’d think, after gardening for so many years with sufficient room for planting, that I would have by now grown every plant I could possibly want. Not so!

Cleaning up my desk, I recently came across a pile of papers clipped together, my pile of “plants to grow.” Over the years, whenever I see a plant of interest in a magazine or newspaper, I’ve torn out the page to add to the collection. The same goes for plants I might come across on the web or in conversation.Plants to grow

Swelling over the years, the pile has become intimidating. Daring to look at it would force me to decide whether such and such still worth growing and, if so, where to plant it. If an ornamental plant, where to incorporate it harmoniously into the landscape? If an edible, where best to site it for convenience in care and harvest? And do I have time to care for yet another plant? If there’s a plant offering both good eating and good looks, how to . . . well, you get the picture.

Perhaps the approach should be the same that some guy with too large a collection of shoes or some gal with too large a collection of cars might take: Vow to get rid of one for each new one collected. Or not.

Now Really, What To Plant Next Year

Okay, I’ve segregated the pile of “plants to grow” into two piles, one for plants to order this coming spring, and one for plants to keep on the back burner.

At the top of my list are three daphnes. I already grow Carol Mackie (Daphne × burkwoodii) for its fragrance and white-picoteed leave; the new daphnes can share a bed with her. Briggs’ Moonlight (D. × burkwoodii) has the reverse leaves, white with a green-picotee — a nice foil for Carol Mackie. Joining them will be Summer Ice (D. x transatlantica), which has just a thin line of white on its leaf edges. Also February Daphne (D. x mezereum), this one for its rosy-purple flowers that open in early spring on leafless shoots. All these daphnes are attractive but their main draw, for me, is the flowers’ jasmine-like perfume. They will make sitting on the nearby deck an olfactory delight from early spring right through summer.

How can I resist a plant called roof iris (Iris tectorum), both for its flowers and low fountains of foliage? It tolerates cold or dry conditions, and grows in sun or shade, so would be a perfect addition in name, needs, and appearance for MY green roof.

Another perennial slated for entrance next year is royal catchfly (Silene regia), a native of American prairies with fire engine red flowers. My plan is to grow them from seed to get enough seedlings to  plant in part of MY meadow.

That’s all for the coming year. What, no fruits, one of my specialties? No, I have all I need. Hmmm . . . what about quince?