Home › Potato › Grow in Ontario

Can You Grow Potato in Ontario?

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

Grows well here

Potatoes grow well here — plant after last frost and expect a harvest in 70-120 days.

Plant zones

3a–10b

Ontario last frost

mid-April

Ontario first frost

mid-October

Days to harvest

70–120 days

When to plant Potatoes in Ontario

Direct sow

Apr 15

Harvest

Jun 24 – Aug 13

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

About Potato

Potatoes are one of the most calorie-dense garden crops and can be grown in bags barrels or garden beds.

Plant certified seed potatoes after last frost. Hill soil up around stems as they grow to increase yield. Harvest after plants die back. Never eat green potatoes — solanine is toxic.

Full potato 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.