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Can You Grow Lettuce in Ontario?

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

Grows well here

Lettuce grows excellently here — one of the best cool-season crops for your climate.

Plant zones

2b–9b

Ontario last frost

mid-April

Ontario first frost

mid-October

Days to harvest

30–60 days

When to plant Lettuce in Ontario

Direct sow

Apr 15

Harvest

May 15 – Jun 14

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

About Lettuce

Lettuce is one of the fastest and easiest crops to grow — perfect for beginners and container gardens.

Sow directly in early spring — lettuce tolerates light frost. Harvest outer leaves for cut-and-come-again. Bolts in summer heat; replant in late summer for a fall crop.

Full lettuce 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.