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Can You Grow Garlic in Ontario?

Canada · Canadian Zone 5 · zones 3, 4, 5, 6, 7

Grows well here

Garlic grows very well here — plant in fall and harvest the following summer.

Plant zones

3a–9b

Ontario last frost

mid-April

Ontario first frost

mid-October

Days to harvest

240–270 days

When to plant Garlic in Ontario

Direct sow

Oct 1 – Oct 31

Harvest

Jun – Jul (following year)

Dates are approximate, based on Ontario's average frost dates. Your exact yard may vary by microclimate.

About Garlic

Garlic is planted in fall and harvested the following summer — one of the most rewarding low-effort crops.

Plant cloves in fall (October) pointy-end up 5cm deep 15cm apart. Mulch for winter. Harvest when lower leaves brown. Cure in a warm dry place for 2-3 weeks for long storage.

Full garlic growing guide →

Gardening in Ontario

Ontario spans several climate zones. Northern Ontario is Zone 3-4 with short seasons; southern Ontario is Zone 5-7 with long productive seasons. The Niagara Peninsula is one of Canada's premier fruit-growing regions.