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Schedule for Spring Gardening in Zone 4

Ground Hog Day marked the start of the new growing season, but spring began in earnest the second week in March with a flurry of outdoor activity during a welcome thaw.  Maple sap flowed freely in the warm sunshine, the ducks began laying daily eggs, and it was planting time indoors and in the hoop house.

Even after chilly temperatures returned this week, vernal colors remain with over-wintered greens putting out new growth along with daffodils blooming in the hoop house.  Forsythia branches kept in a vase on the kitchen table popped open their yellow blossoms soon to be followed by soft salmon pink of the flowering quince.

So while winter comes and goes in March and continues into April, gardeners can feed their souls and coax early harvests by steadily exploiting every opportunity to maximize the growing power of spring sunshine.  Here’s my monthly to-do list of gardening tasks to help you cherish the on-and-off, Northern version of spring.

Row covers removed from beds in the hoop house on March 16 revealed daffodils in bloom!

Row covers removed from beds in the hoop house on March 16 revealed daffodils in bloom!

MARCH

  • Set up an indoor seed starting system if you haven’t already, providing supplementary light if possible.
  • Start seeds for celeriac, peppers, eggplants, and basil indoors along with any herbs or flowers that need a long season (many people start the latter along with any onion family starts in February)
  • Prepare soil under cover (cold frame, hoop house, etc) as soon as ground thaws, in any empty places and seed hardy greens.
  • Plant peas and fava beans under cover amongst the overwintered lettuce and spinach, so the new plants can take over as soon as the greens are done.
  • Water, weed and harvest under-cover, any over-wintered greens and herbs as they put out new growth.
  • Cover a bed or garden area with plastic to melt snow and dry it for early planting.
  • Graft and prune fruit trees, shrubs and vines
A wonderland of wild leeks where we go to harvest in April.

A wonderland of wild leeks where we go to harvest in April.

APRIL

  • Prepare soil and direct-seed all hardy plants (spinach, lettuce, peas, cabbage family, onion family, carrots, beets, etc.) in garden as soon as soil can be worked.
  • Mulch plants that are under cover as temperatures warm to keep roots moist and prevent overheating
  • Harvest greens at a steadily increasing rate.
  • Remove plants that are under cover as they bolt unless you want them to seed themselves, and plant new crops (potato sets can handle surprisingly cold soils), transitioning to increasingly tender crops as season progresses.
  • Start tomato seeds indoors under lights
  • Remove mulch from asparagus and rhubarb to warm soil
  • Apply compost and mulch to root zone of  fruit trees
  • Transplant woody plants and perennials if soil is no longer wet
  • Harvest dandelion leaves and roots before the plant flowers.
  • Head into woods to look for morels and large patches of wild leeks (places where you can harvest sustainably)
Freshly mulched perennials, bordered by creeping phlox, between showers in May.

Freshly mulched perennials, bordered by creeping phlox, between showers in May.

MAY

  • Transplant tomato seedlings and other transplants to larger pots, burying any leggy stems to encourage strong root growth.
  • Add good quality compost to all garden beds to improve soil texture, fertility and reduce disease
  • If possible, prepare beds for summer plants at least a week or two before you plant.
  • Direct seed root crops and hardy greens in early May.
  • Direct seed or plant in pots, long-season cabbages and brussels sprouts for winter storage
  • Plant potatoes early as well as onion-family plants and sets
  • Plant squash, cucumbers and other warmth-loving plants (those with with large seeds) in pots if you want – otherwise wait and plant directly in the soil when it warms.
  • Harvest lettuce, greens, radish, chives from earlier plantings and sorrel, rhubarb and asparagus from perennial plantings
  • Forage for pheasant back mushrooms young nettles, wild leeks and other spring greens.
  • Transplant woody plants and perennials
  • Transplant tender plants (tomatoes, peppers, eggplants, basil, squash corn, beans etc.) into ground when soil & air are consistently warm – maybe at the end of May but often best to wait until June.  Remember the rule of thumb: don’t plant until you can comfortably sit on the soil with a bare bum!

Every season and every garden are unique and every gardener has a different routine so I offer this schedule only as a guide to help you find your own groove.  Happy Spring!

Glorious Greens of Fall

A riot of autumn greens - chard and kale.

Between the withering heat of summer and the icy winds of winter comes the season we normally associate with warm colors – orange, red and gold – and later the browns of stick season.  But for gardeners, these are the seasons to relish and admire vibrant greens bursting from the ground.

Chard, kale, broccoli, parsley, arugula and other cold-loving greens that start with gusto in the spring then limp through the summer with dull, coarse leaves and not much flavor, suddenly become glossy, vivid, with a tender texture and sweet flavors in the fall.  Later, as freezing temperatures take their toll, some older leaves may wither but with protection, the inner leaves will often remain intact well into the winter.

The gorgeousness of green leafy vegetables in autumn would be enough to feed my soul but they also bring deeply satisfying flavors to the table that I love and crave. (The craving no doubt a response to the impressive nutritional benefits that greens offer.)  Am I crazy to admit that I actually prefer the greens of spring and fall to the fruits of summer?  This might explain my obsession with season-extending and focus on coaxing harvests during the shoulder seasons – because greens are what grow best when its cold.

Many people believe that kale and other greens are bitter and unpalatable.  This may be partially due to only having access to greens harvested in summer or grown in hot climates.  But there may also be a general gap in knowledge about how to prepare greens to get the best flavor.  Here are some ideas for savoring the green gifts gardens offer in fall.  Any type of greens or combination can be used for these preparations.

  • Add to soups and stews – Most hardy soups and stews can benefit from a few handfuls of chopped greens.  Once cooked, the greens lose an incredible amount of volume and the flavors will blend into whatever you are cooking.  Add a few minutes before serving if you want the bright green color or add earlier and cook longer if you want the color to recede and the flavors to blend.
  • Saute with garlic – This is probably my favorite way to cook greens.  Wash and chop up any and all greens – 8 cups of chopped greens will “melt” down to a cup or two of cooked greens.  Coarsely chop a tablespoon or two of garlic.  Heat a large pan or wok with a tablespoon of oil — medium high, and briefly saute the garlic until tender but not burned. Add a pinch of red pepper flakes if you wish to the garlic plus some salt, then the greens. Mix, cover and cook until wilted. The water on the wet leaves will prevent the greens from burning.  Use as a side dish, or drain and add as a topping to pizza or bruschetta, grating some hard cheese on top.
  • Make kale chips – I just discovered how easy it is to make this addictive snack.  Tear up kale leaves into chip-sized pieces, coat them very lightly with olive oil and salt (plus any other flavoring you might like), lay out on sheets and bake for 12 minutes in a preheated oven at 350 degrees, until crunchy.  Stir once mid-way through baking.  I tried using chard too, and while it crisped-up nicely, it didn’t have much flavor.  Next time I’ll try using some bok choy greens and maybe some flat leaf parsley.

A pile of greens-filled ravioli with sage butter and walnuts.

For a special celebration of greens and the flavors of fall, we always look forward to an annual meal of ravioli with a browned butter sauce seasoned with sage and walnuts.  

FILLING:
  1. Wash and remove stems from 1 1/2 pounds of greens. Cook covered for 5 minutes or until wilted. Drain and squeeze out liquid then chop fine.
  2. Mix greens with 2 minced garlic cloves, 1/2 pound ricotta cheese, and 1 cup grated parmesan cheese, and grated nutmeg to taste.
  3. Add one large egg and mix well, seasoning to taste with salt and pepper.
PASTA:
I won’t provide detailed instructions on making ravioli – there are plenty of other sites that offer detailed instructions.  Just be sure to use a recipe rich in eggs like this one from Michael Chiarello. If making pasta is too much trouble, you could cook up some strips of lasagne and play with creative ways to combine the filling with pasta – layering, rolling, or mounding, etc.
SAUCE:
  1.  Melt 1/2 cup of butter in a saucepan.
  2. When butter sizzles and foams, add 16-20 sage leaves (whole if small, cut in strips if large).  Cook until butter starts to turn golden brown.
  3. Remove sauce from heat and add 1/3 cup toasted walnuts, chopped coarsely.  

Spoon sauce over freshly cooked pasta and eat immediately.  Delicious!

Home-dried tomatoes

Tomatoes drying in the sun, covered by cheesecloth.

Given the options for preserving the bounty of tomatoes – canning, freezing or drying – I prefer the method that combines the most flavor for the least amount of energy and storage space. Tomatoes dried in the sun (with a little help from a dehydrator) meet these criteria with a chewy rush of tomato essence available year round.

A food dehydrator can be a useful tool for drying tomatoes, but I use it sparingly, preferring instead, the power of clear, breezy sun-drenched days that so often grace late August and September.  My old,  inexpensive dehydrator, the Snack Master Jr. from American Harvest, with only four, round drying trays, wouldn’t provide sufficient capacity for anyone ambitious about drying vegetables, but it’s just right for my needs of fitting food preservation into scraps of time here and there.  If you don’t have a dehydrator, you can supplement sun-drying with oven drying on the lowest temperature possible.

When a stretch of two or more sunny days are forecast, I select the ripest cherry tomatoes and small plum tomatoes like my favorite, Juliet.  Then wash and cut them, laying the skin side down on the drying tray.  The littlest tomatoes are cut in half but the larger ones dry faster if cut in quarters.  While this results in tiny pieces of dried tomatoes, it saves time later in the kitchen since the tomatoes are already pre-sliced to a size suitable for most uses. I remove the core while cutting too, though there is very little core to remove when the tomatoes are optimally ripe.

Most sources recommend removing the seeds and pulp before drying.  This would certainly speed the drying process but the pulp contains much of the best tomato flavor so I leave it in and put up with the longer drying time. Depending on the weather and humidity, the size of the tomatoes being dried, and the amount of indoor drying you bother to do, the tomatoes are usually ready  in 24 – 36 hours.

Many drying directions also recommend sprinkling salt on the cut surfaces of the tomatoes.  I’ve never used salt but it probably helps speed the drying and prevents spoilage so might be worthwhile if you need to sun-dry tomatoes in sub-optimal conditions. Otherwise, why add salt if it’s not necessary?

After first preparing the tomatoes on the trays on a sunny morning, I like warming up the tomatoes in the dehydrator while the dew is burning off to jump-start the drying.  Then the trays are laid out on a table outside and covered with cheese cloth to keep flies off.  To prevent the cloth from sticking to the cut surfaces of the tomatoes, an inverted jar can be placed over the central hole of the tray and the cheese cloth tented over it, tucking the sides of the cloth under the edges of the trays.

In the evenings, I’ll usually run the dehydrator until bedtime but avoid running the dehydrator overnight.  Most nights are cool enough to leave the half-dried tomatoes at room temperature.

By the way, half-dried tomatoes are really delicious — still soft but with an intensely concentrated flavor.  I haven’t tried using them in a meal yet but it’s fun to sample the tomatoes at various stages of drying.

When the tomatoes are no longer tacky but still pliable, I store them in clean jars and keep them in the pantry at room temperature.  I had a problem with mold once after carelessly storing some under-dried tomatoes. Otherwise, dried tomatoes keep nicely for a year or more — I really don’t know how long they might last since they get used up pretty fast in our household.

During winter months when garden fresh tomatoes are distant dream,  we break out the dried tomato pieces, re-hydrate them briefly in warm water and add to pizzas, omelettes, pastas, or any dish that wants a bright red, sweetly acidic note.  They even make tasty little snacks as-is, right out of the jar.

 

Summer Cilantro

Home grown coriander seeds with its offspring, a clump of cilantro.

A favorite seasoning of tropical cuisines ought to grow happily in summer but Cilantro just doesn’t. It much prefers the cold.  How can an herb featured in Mexican and Southeast Asian dishes have such an aversion to heat? I ponder this mystery each year as tomato season approaches and we are challenged to ensure a steady supply of that distinctive, love-it-or-hate-it flavor for our summer salsas and salads.

Cilantro, the Mexican name for the leaves of the coriander plant, is related to parsley, and like its cousin, grows best in chilly temperatures. But even more than parsley, I’ve found cilantro to be a super-hardy crop for over-wintering.  What a surprise!

Unlike parsley, which will produce juicy leaves for a whole season before going to seed the second year, cilantro is prone to bolting at the first sign of heat or stress.  Cool temperatures keep cilantro plants in the leaf stage for a prolonged period of harvest.  But in summer the plant barely emerges before shifting its energy from making leaves to flowering, eventually producing the round, papery-skinned coriander seeds we all know from the spice cabinet.

Given that challenge, here are my strategies for keeping a steady supply of cilantro flavor all summer.
1. Keep planting all season. Find moist, shady nooks and crannies to plant cilantro seeds – behind a bean pole or under the broccoli plants – every week or two.  The cilantro plant isn’t very large and has a narrow, edible tap root that won’t compete much with other plants so it can co-exist easily with most other crops. Where there’s room, I allow the plant to flower and produce seed, ensuring a steady supply of seeds for future planting.  The seeds take a long time to germinate so its easy to forget where they’ve been planted but it’s always fun to discover the leaves just when you need them.
2. Use the green seeds.  I’ll use any parts of the cilantro plant, leaves, flowers or roots that are still tender and fragrant — especially the juicy, newly formed seeds.  Before the seeds have turned brown and dry, they have a smooth, green skin and smashed with the side of knife, release a lot of great cilantro flavor.  The crunchy little balls of spice are nice for nibbling in the garden too.
3. Freeze surplus leaves in spring.  Cilantro planted as soon as the ground thaws in early spring will produce loads leaves — more that you can use.  These can be washed, roughly chopped and frozen as-is.  When salsa season comes around, the frozen leaves can be rinsed quickly, further chopped and added to dishes with good results.
 If anyone has other strategies for successful cilantro harvests in summer, do tell.

Addendum

For shy people, finding ourselves prominently displayed in a newspaper can be unnerving. But Phyl Newbeck’s story on our evolving garden in the DYI section of the Burlington Free Press on June 26, 2012, treated us gently and gave us a chance to share a bit of what we’ve learned over the years.  Here are some additional comments and clarifications from the gardener.

… <she> starts perusing seed catalogs in January to come up with a blueprint for the garden. The beds are rotated annually and at this juncture the couple has more than 100 species in the garden.

While I begin work on my seed order in January, the rotation plan is done by fall before the garlic is planted.  Much of the garden prep for the coming year can then take place before winter and enabling the overwintering of cold hardy crops as well as super-early planting.  In summer, I increasingly plant polycutures in  my raised beds, mixing a variety of crops, so while a strict rotation isn’t necessary, to deter the diseases that plague tomatoes in our climate, I make sure 3-years have gone by before I plant any of that family (potatoes, peppers, eggplants) in each bed.

Daisy, Brownwyn and Earl Gray -- ducks who eat slugs and convert them to eggs.

Slug patrol is performed by a trio of geese who also provide the couple with eggs.

Indian Runner ducks do our slug control — they are much smaller and easier to handle than geese!  Daisy, the matron, leads her followers – the two we kept from the ducklings raised last summer.  Their siblings went to live at Tom and Ann’s duck-heaven in Jericho where the flock is guarded by an enormous goose, aptly named King.

The couple tries to avoid growing surplus, planting only enough for their needs and what can be stored in the root cellar.

We grow enough surplus to share but prefer not to spend time on food preservation.  Instead we aim to grow a little of a lot of different crops so we have a variety of seasonal selections at all times and by extending the season on both ends, we can ensure fresh harvests for as long as possible.  For a few, high value items like raspberry jam and basil pesto, we deem the time spent in the kitchen to be worthwhile.

In the photo gallery, the last photo depits my “hardy” fig plant.  This variety, Celeste, isn’t necessarily any hardier than any others but we store the potted plant in our root cellar during the coldest winter months. I welcome any input that other Z4 gardeners can offer on growing figs and am happy to swap cuttings.  Once I figure out how to coax more than 2-3 figs from each plant, I will be sure to report on it here!