Vegetable Growing Guides for Canada

On this page
  1. Find your growing band
  2. Choose crops that fit the season you have
  3. Growing guides (20 crops)
  4. Month by month
  5. Just need the timing?
  6. Where gardeners lose a season
  7. In a short season, the plan is worth more than the ad...
  8. Frequently Asked Questions
  9. Crops that actually help each other
  10. Every Canadian growing guide, by plant family

Vegetable growing guides for Canadian gardens. With a frost-free season running from about 90 days in the north to 222 on the Pacific coast, and zones from 0 to 9, every crop here has to answer one question first: will it finish before the frost returns? Each guide gives days to maturity, the sowing window, and the honest answer for a short season.

SoilCommander Editorial Team — under the direction of Nitin Sharma, Co-Founder

Every growing guide is checked against RHS, USDA Cooperative Extension, and other named horticultural authorities before publishing.

Find your growing band

A community garden in Edmonton. Vancouver and Calgary differ by roughly two months.
A community garden in Edmonton. Vancouver and Calgary differ by roughly two months. “Green & Gold Community Garden” by Mack Male is licensed under CC BY-SA 2.0. Source: Wikimedia Commons.
Band Where Last spring frost First fall frost Frost-free days
Long season
Zones 7-9
Pacific Coastal Mild (Vancouver Island, Lower Mainland); Inland Valleys & Southern Lakes (Okanagan, Golden Horseshoe, Niagara) late March on the coast (Vancouver ~28 March); early-to-mid May inland early November on the coast; mid-to-late October inland 150-222 frost-free days
Medium season
Zones 4-6
Central Continental (Ottawa Valley, Montreal, Quebec City); Atlantic Maritime (Nova Scotia, PEI, Newfoundland coasts) Toronto ~20 April to 10 May; Montreal ~3 May; mid-to-late May inland late September to mid-October 130-170 frost-free days
Short season
Zones 2-3
Prairies (Calgary, Edmonton, Saskatoon, Winnipeg); Far North & Alpine Edmonton ~7 May; Calgary ~23 May; Winnipeg ~25 May, later at elevation early-to-mid September 90-130 frost-free days

Long season: The only part of Canada where overwintering vegetables outdoors is routine rather than experimental. Medium season: Long enough to ripen tomatoes and peppers from indoor starts, but days-to-maturity has to be checked against the season, not assumed. Short season: Long summer daylight partly compensates for the short calendar, but short-season cultivars and season extension are not optional.

Choose crops that fit the season you have

Several Canadian staples improve after frost, which effectively lengthens the season at the far end.
Several Canadian staples improve after frost, which effectively lengthens the season at the far end. “Frosted kale” by Tracy is licensed under CC BY 2.0. Source: Wikimedia Commons.

In a long season, crop choice is a matter of taste. In Canada it is arithmetic, and it is the single decision that most often separates a full harvest from a disappointing one. Before you buy the seed, check that the crop can finish.

The method is simple and worth doing on paper. Take days to maturity from the packet. Add two to three weeks, because catalogue figures assume ideal conditions and growth slows sharply as August days shorten. Count forward from your realistic planting-out date — which for tender crops is after your last frost, not on it. If the answer lands past your first fall frost, the crop will not finish.

Your band Frost-free days What is realistic
Short season
Prairies, Far North, alpine
90–130 Roots, brassicas, salads, peas and potatoes do very well. Tomatoes and peppers need indoor starting, early cultivars and usually some protection. Melons, okra and long-season peppers are a greenhouse crop here, not a garden one.
Medium season
Ottawa Valley, Montreal, Atlantic Canada
130–170 Nearly everything works with indoor starting. Winter squash and corn are comfortable. The risk shifts from “will it finish” to “did I sow the second crop in time”.
Long season
Coastal BC, Okanagan, Niagara
150–222 Full range, including overwintering crops on the coast. The binding constraint here is summer dryness in the interior, not season length.

Two things buy back time and cost almost nothing. Choosing an earlier cultivar can remove two to three weeks of risk for free — a 65-day tomato and an 85-day tomato are the same amount of work. And frost-improved crops extend the far end: kale, leeks, parsnips, Brussels sprouts and carrots do not merely survive frost, they sweeten after it, so counting their season as ending at first frost understates them by weeks.

Growing guides (20 crops)

A Prairie vegetable garden in Saskatoon — a productive plot inside a very short window.
A Prairie vegetable garden in Saskatoon — a productive plot inside a very short window. “Elaine's Vegetable Garden” by daryl_mitchell is licensed under CC BY-SA 2.0. Source: Wikimedia Commons.

New to growing? Start here

These forgive a late sowing, patchy watering or a first attempt at spacing. Get three or four of these right before you commit a whole bed to anything trickier.

  • Radishes — Ready in under a month, so a failed sowing costs you nothing in a season where every week counts.
  • Lettuce — Fast and forgiving — succession-sow through the cooler parts of the season rather than one big row.
  • Spinach — Handles cold well; the only real skill is timing it around the short window before it bolts in June heat.
  • Peas — One of the first things you can sow outdoors in spring, and close to effortless once it's in.
  • Beets — Roots and greens from one sowing, slow enough to forgive an uneven start.
  • Bush beans — No staking required — wait for warm soil, then largely leave it alone.
  • Green onions — Sow direct, cut as you need them, sow again — about as low-commitment as a crop gets.
  • Fava beans — Hardy enough to overwinter in mild areas, and they leave the soil better than they found it.

The reliable core of the plot

Once you've got a season behind you, most of a productive plot is built from crops in this group — well understood, forgiving of an average year, and worth the space every time.

  • Tomatoes — Worth starting indoors early; in a short season the transplant date matters more here than almost anywhere else it's grown.
  • Potatoes — Reliable and high-yield for the bed space, and tolerant of a season that doesn't go entirely to plan.
  • Onions — Needs an early indoor start — often as early as February on the Prairies — but is dependable once that's in place.
  • Carrots — Wants loose, stone-free soil more than it wants skill; get the bed right and the crop follows.
  • Cabbage — A dependable staple, but rotate it properly — clubroot spores persist in soil for years once established.
  • Zucchini — A couple of plants will out-produce most households across even a short Canadian summer.
  • Cucumbers — Rewards black plastic and warm soil in cooler regions; one of the best returns per square foot once it gets going.
  • Leeks — Slow but dependable, and they stand in the ground through winter until you want them.
  • Shallots — Planted as sets like onions, but each one splits into a cluster — low effort once they're in.

Crops that ask more of you

Get the timing and conditions right and these are the most satisfying things you'll grow. Get them wrong and they sulk, stall or fail outright — there's very little room in between.

  • Peppers — Marginal without a low tunnel or greenhouse in the shortest-season regions — genuinely worth the extra protection where the season allows.
  • Sweet corn — Needs a block rather than a row for pollination, and a cultivar bred for a short season — both are worth getting right.
  • Broccoli — A narrow window between cold enough to head and warm enough to bolt; exclusion netting also solves most of its pest pressure.
  • Kale — Exceptionally cold-hardy — can be harvested under snow in the mildest regions, which makes it worth the bed space through the shoulder seasons.
  • Cauliflower — The trickiest common brassica — firm soil and even moisture decide whether you get a curd at all.
  • Celery — Thirsty and slow, and it wants trenching — most gardeners either love growing it or skip it.
  • Grain amaranth — An unusual grain crop for anyone with space to experiment — sow warm, harvest the seed heads in autumn.
  • Love-lies-bleeding amaranth — The ornamental cousin of grain amaranth, grown as much for the trailing flowers as the edible leaves.
  • Eggplant — Slow to establish and fussy about heat, but few crops produce like it once it's away.
  • Brussels sprouts — Slow and space-hungry, but the flavour genuinely improves after the first hard frost.

Plant once, harvest much later

These don't run on a normal sowing-to-harvest rhythm. Plant them, do very little for months, and the payoff arrives on its own schedule — sometimes not until next year.

  • Garlic — Planted in autumn, left alone through winter, lifted the following summer — one of the few crops a short growing season doesn't limit.
  • Sweet potatoes — Marginal outside the mildest regions without a greenhouse — a genuine long-game crop that needs a full warm season to pay off.
  • Winter squash — A long season from sowing to a storage-ready fruit, but what you get keeps for months once it's in.
  • Strawberries — Plant a bed once and it crops every summer for three or four years before it needs renewing.
  • Elephant garlic — A leek relative with garlic-sized ambitions — plant like garlic, but give the giant cloves real room.
  • Pumpkins — Wants space and feeding more than skill; the reward is sized by how much room you give it.

Working out timing rather than technique? The Vegetable Planting Calendar Canada sets out sowing, transplanting and harvest windows for every region.

Month by month

Just need the timing?

Turn these guides into a written plan. The Canada Vegetable Garden Planner (printable PDF) has frost-date planning pages, bed layouts, crop rotation, a sowing log and a harvest tracker — 70 printable pages.

Where gardeners lose a season

Soil warmth, not air temperature, is what most short-season failures come down to.
Soil warmth, not air temperature, is what most short-season failures come down to. “Mulchfolie auf Gemüseacker” by Florian Gerlach (Nawaro) is licensed under CC BY-SA 3.0. Source: Wikimedia Commons.

In a hundred-day season there is no room to recover from an early mistake, so the failures below are more expensive here than anywhere else on this site.

What goes wrong Why it happens Where to read the fix
Beans and corn rot in the ground Sown after the long weekend because the calendar said so, into soil still below 10 °C. Bush beans · Sweet corn
Tomatoes are still green at first frost Started too late indoors, or a cultivar with too many days to maturity for the band. Tomatoes
Peppers sit still all summer and never size up Planted out while nights were still below 10 °C. Cold nights stunt them permanently, and they do not catch up. Peppers
Squash and cucumbers sulk after transplanting Root disturbance plus cold soil. These resent both, and the short season leaves no time to recover. Zucchini · Cucumbers
Onions stay small Sown too late. Onions need to be started ten to twelve weeks before last frost, which on the Prairies means February. Onions
Beds sit empty from August No fast autumn crop planned while the summer crops were still standing. Planting calendar

The pattern is the same one every time: a decision made in February or March that only becomes visible in September. That is precisely the gap a written plan closes.

From guides to a plan

In a short season, the plan is worth more than the advice.

Individual crop guides tell you what each vegetable needs. They cannot tell you whether your February indoor sowing schedule adds up, whether the bed you had in mind held the same family last year, or whether the crop you just ordered can finish before frost.

The Canada Vegetable Garden Planner is the printable system for that: short-season timing organised by frost-free days, indoor sowing schedules counted back from your own last frost, a season-extension planner, bed layouts, four-year rotation, seed inventory, sowing log and harvest tracker.

See the planner →

Frequently Asked Questions

How do I know which Canadian season band I am in?

Find your local last spring frost and first fall frost dates and subtract. Roughly 150-222 frost-free days is the long band, 130-170 the medium band, and 90-130 the short band.

Why do Canadian guides start with days to maturity?

Because season length is the binding constraint here. A crop that needs more days than your season provides will not finish, however well you grow it. Checking the arithmetic first avoids the most expensive mistake.

How many crops do these guides cover?

20 vegetables, each checked against Canadian frost dates, with season extension advice and short-season cultivar guidance.

Last updated 25 August 2026

Crops that actually help each other

Most companion-planting advice is folklore rather than evidence -- Garden Organic itself notes there is "not much scientific evidence to support many of the claims made." These four pairings are the ones we could trace to a named source; the rest of the guides below list crop-rotation warnings (shared pests and diseases) rather than positive pairings.

  • The Three Sisters -- Sweetcorn, Runner Beans and Pumpkins: a traditional Native American polyculture (Garden Organic). The corn gives the beans something to climb, the beans (a legume) fix nitrogen that benefits the corn, and the pumpkin's sprawling foliage shades the soil to suppress weeds.
  • Carrots + Onions -- mutual scent-masking may reduce carrot fly and onion fly (Garden Organic); treat as plausible rather than proven.
  • Tomatoes + Sweet Basil -- basil is a non-host plant for glasshouse whitefly; interplanting reduced whitefly populations on tomato in a season-long glasshouse trial (PLOS ONE, 2019).
  • Strawberries + Borage -- borage attracts pollinators that benefit the strawberry crop.

Every Canadian growing guide, by plant family

Every one of our 285 Canada vegetable growing guides, grouped by plant family — the same grouping the Garden Layout Planner uses, because plant family is what decides where a crop can go in your crop rotation. Open a family to see its crops, or search below.

The onion family24 guidesGarlic, leeks, shallots and every onion relative. Slow, hardy, and worth a long rotation — white rot lingers in soil for years.
Brassicas & mustards43 guidesCabbages, kales and their peppery cousins from radish to horseradish. Net them against cabbage white and keep them moving around the plot.
Peas & beans23 guidesNitrogen-fixers that leave the soil better than they found it. Follow them with a hungry brassica.
The potato & tomato family14 guidesHungry, blight-prone and best kept together so you can rotate them hard — potatoes, tomatoes, peppers, aubergines.
Roots & tubers28 guidesEverything you dig rather than pick. Most want stone-free, unmanured ground and steady moisture.
Leaves & salads28 guidesCut-and-come-again crops that reward little and often sowing — the fastest return in the garden.
Squashes & cucumbers15 guidesSprawling, thirsty and frost-tender. Give them room, warmth and more compost than you think.
Herbs & aromatics51 guidesKitchen herbs, from a windowsill pot of basil to a permanent bay. Most prefer poorer soil and sharper drainage than you would guess.
Fruit & berries34 guidesTrees, canes and bushes that crop for years once established — the longest-term planting decisions you will make.
Nuts5 guidesLong-lived trees for patient growers. Plan for the eventual canopy, not the sapling.
Grains & pseudo-grains9 guidesCereals, oilseeds and seed crops — practical at allotment scale for green manure, straw and a novelty harvest.
Plant once, harvest for years9 guidesCrops that stay put. Prepare the ground properly before planting, because you will not get another chance.
More crops to try2 guidesThe rest of the collection — unusual, ornamental-edible and specialist crops.
Planning tools & reference13 pagesThe calendars, planners and problem-solving guides that sit alongside the crop guides.
Relevant next steps

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This guide in another region
Top tips for October
  • Plant garlic before hard frosts
  • Protect late salads with fleece
  • Store squash somewhere dry
  • Mulch empty beds
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