Toronto, Ontario
When to plant potato in Toronto
Station data · 88% confidence cool seasonhalf-hardy to frost
- Direct sowlate AprilApr 25 – May 16 · 88% conf.
- Harvestearly JulyJul 4 – Aug 23 · 79% conf.
The growing window at a glance
Frost-free growing season · 150 daysFrost risk (before May 9 / after Oct 6)
Potato at a glance in Toronto
- Needs soil above 7°C to germinate well.
- Days to maturity: 70–120 days.
- Climate zone: Continental, warm summer (Dfb).
Frost dates are probabilities, not guarantees. Your garden's microclimate — slopes, walls, urban heat, cold pockets — can shift these dates by a week or more. Use them as a confident starting point, then watch your local forecast.
Frequently asked
When can I sow potato outdoors in Toronto?
Direct-sow around late April (Apr 25–May 16) in Toronto, based on its local frost dates. Confidence 88%.
When will potato be ready to harvest in Toronto?
Expect to harvest from around early July (Jul 4–Aug 23) in Toronto, based on its local frost dates. Confidence 79%.
How long is the growing season in Toronto?
Toronto has roughly 150 frost-free days, which is enough time to grow potato to maturity outdoors.