What to Plant in October Canada
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What to plant in October in Canada depends entirely on your zone — this page answers it for every band. October is garlic planting and bed closing across Canada. Plant garlic on the coast, mulch it inland, clear and cover beds, and harvest the last hardy crops before the ground freezes.
Updated 29 September 2026 for October.
October planting by region
| Band | Sow outdoors | Start indoors | Plant out | Harvest now |
|---|---|---|---|---|
|
Long season Zones 7-9 |
Cover crops; garlic mid-month. | Nothing. | Garlic cloves. | Kale, leeks, carrots, brassicas, late salad. |
|
Medium season Zones 4-6 |
Cover crops early month. | Nothing. | Garlic if not yet planted. | Carrots, beets, kale, Brussels sprouts, leeks. |
|
Short season Zones 2-3 |
Nothing. | Nothing. | Nothing — too late. | Harvest complete; clear beds before hard freeze. |
October by region: Ontario, the Prairies, Atlantic Canada and BC
Canadian sources agree on the principle but not on one date: garlic needs a lead time before the ground freezes, and that moment arrives at very different times from the coast to the Prairies. These are the published recommendations for each region:
| Region | What Canadian sources say |
|---|---|
| Ontario | Garlic: if planted too late, cloves may not develop adequate roots and will not be winter hardy; the most common mulch is straw, 10-15 cm deep over the planted rows (Government of Ontario, OMAFRA, OMAFRA). For the Greater Toronto Area the Toronto Master Gardeners (a volunteer programme, not a university) give late October, 4-6 weeks before the soil freezes (Toronto Master Gardeners). |
| Prairies (Alberta, Saskatchewan, Manitoba) | Garlic: the University of Saskatchewan says cloves can go in between late August and early October, up to three weeks before the ground freezes (Univ. of Saskatchewan); Manitoba Agriculture gives September to late October, with October 15 ideal most years (Manitoba Agriculture); Alberta Agriculture bases the date on your average first fall frost and says to cover with straw if snow cover is thin or winter thaws occur (Alberta Agriculture). Raised beds are not recommended for fall-planted garlic in most of the Prairies because of the risk of cold damage (Univ. of Saskatchewan). |
| Atlantic Canada (Nova Scotia) | Dalhousie's Faculty of Agriculture lists kale, spinach, evergreen bunching onion, lettuce, parsley, parsnip, carrots and salsify as crops that may survive into winter, mulched with 20 cm (8") of mulch to prevent heaving of the soil (Dalhousie Faculty of Agriculture). |
| British Columbia | We could not reach a provincial or university source with fall-planting dates for BC that we were able to verify, so this page gives no BC-specific dates. For the coast, the Long season row above (zones 7-9) is the closest guide. |
Protecting late crops from October frosts
Nova Scotia's Dalhousie guidance says that on a mild frost warning (no lower than -1°C) you can try covering tender plants that still hold immature fruit (Dalhousie). Floating row covers generally provide 2 to 3 degrees of frost protection, so cool-season crops can be planted in air temperatures as low as -2°C (Dalhousie), and cold frames let cool-weather crops keep growing in the fall and even into early winter (Dalhousie). On the Prairies, crop covers protect crops late in fall from light frosts (Univ. of Saskatchewan).
Storing the harvest
- Root crops such as carrots: 0°C (32°F), cold but not frozen, at 90-95% humidity (Univ. of Saskatchewan)
- Winter squash and pumpkin: 10-13°C (50-55°F) at 85-95% humidity — warmer than root crops (Univ. of Saskatchewan)
- Onions: cure for one week, then store at 0-5°C (32-40°F) at 70-75% humidity, dry (Univ. of Saskatchewan)
October garden jobs
- Plant garlic on the coast; mulch already-planted garlic inland once soil chills.
- Clear beds and compost healthy material only.
- Cure and store squash, onions and potatoes properly.
- Drain hoses and irrigation before the first hard freeze.
- Take a soil test now if you plan to amend before spring.
Common October mistakes
- Mulching garlic before the ground has cooled, which encourages soft growth and rot.
- Leaving hoses charged through a Prairie freeze.
- Composting blighted tomato and potato foliage.
- Leaving Prairie beds uncleared into freeze-up, which makes spring far harder.
Turn October's jobs 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.
More Canada planting guides
- What to plant in September Canada
- What to plant in November Canada
- Vegetable Planting Calendar Canada
- Vegetable Growing Guides for Canada
Frequently Asked Questions
When should I plant garlic in Canada?
It depends on where your ground freezes first: late August to early October on the Prairies, up to three weeks before the ground freezes (Univ. of Saskatchewan), and late October in the Greater Toronto Area (Toronto Master Gardeners). Plant too late and cloves may not root or be winter hardy (OMAFRA).
Is it too late to plant garlic in October in Canada?
In the Prairie provinces, Manitoba Agriculture gives October 15 as ideal most years (Manitoba Agriculture), so late October is usually pushing it there. In milder parts of Ontario and the coast, October is still a garlic month. If the ground has frozen, wait for spring.
Can I still harvest in October?
Yes, on the coast and in the milder inland zones. Carrots, beets, kale, Brussels sprouts and leeks all crop well into October; in the short-season band harvest should be complete before the hard freeze.
What can I still plant in October in Canada?
Garlic, in most regions, and cover crops early in the month on the medium band. Cool-season crops can be planted in air temperatures as low as -2°C under row cover (Dalhousie). Hardy seed for spring germination is sown on the Prairies from late October (Univ. of Saskatchewan).
Do raised beds work for fall-planted garlic?
Not in most of the Prairies: the University of Saskatchewan does not recommend raised beds for fall-planted garlic because of the risk of cold damage (Univ. of Saskatchewan).
Sources checked for this page (Canadian provincial and university sources)
- University of Saskatchewan — gardening.usask.ca/articles-and-lists/articles-preservation/cold-stora
- Government of Ontario — ontario.ca/page/garlic-production
- Toronto Master Gardeners — torontomastergardeners.ca/gardeningguides/growing-garlic-from-cloves-a
- University of Saskatchewan — gardening.usask.ca/gardening-advice/gardenline-nested-pages/food-plant
- Manitoba Agriculture — gov.mb.ca/agriculture/crops/crop-management/pubs/bmz00s10p.pdf
- Alberta Agriculture — www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/faq7458
- Dalhousie Faculty of Agriculture — dal.ca/content/dam/www/about/campus-locations/garden-box/vegetable-gar
- Dalhousie Faculty of Agriculture — dal.ca/content/dam/www/about/campus-locations/garden-box/season-extens
- University of Saskatchewan — gardening.usask.ca/articles-and-lists/articles-how-to/extending-the-gr
- University of Saskatchewan — gardening.usask.ca/articles-and-lists/articles-how-to/fall-seeding.php
Plan your October beds
Turn this month's list into a layout: sketch your plot in the free Garden Layout Planner, then follow the whole season with the Canada Vegetable Garden Planner (printable PDF, 70 pages). For the full year, see the Canada vegetable planting calendar, browse every crop in the Canada growing guides, or use the Canada site directory.
Last updated 29 September 2026
Turn This Month's Jobs Into A Plan
Month-by-month advice works best when it becomes a written sowing list, bed plan, and follow-up task list.
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Plan the next step
Use the printable SoilCommander planner for your region to turn this guide into sowing dates, bed layouts and weekly garden tasks.