Toronto, Ontario
When to plant kale in Toronto
Station data · 88% confidence cool seasonvery-hardy to frost
- Direct sowmid AprilApr 18 – May 9 · 88% conf.
- Harvestmid JuneJun 12 – Jul 2 · 79% conf.
- Start seeds indoorslate MarchMar 28 – Apr 18 · 84% conf.
- Transplant outdoorsmid AprilApr 18 – May 9 · 88% conf.
The growing window at a glance
Kale at a glance in Toronto
- Needs soil above 5°C to germinate well.
- Days to maturity: 55–75 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 kale outdoors in Toronto?
Direct-sow around mid April (Apr 18–May 9) in Toronto, based on its local frost dates. Confidence 88%.
When will kale be ready to harvest in Toronto?
Expect to harvest from around mid June (Jun 12–Jul 2) in Toronto, based on its local frost dates. Confidence 79%.
When should I start kale seeds indoors in Toronto?
Start seeds indoors around late March (Mar 28–Apr 18) in Toronto, based on its local frost dates. Confidence 84%.
When can I transplant kale outdoors in Toronto?
Transplant outdoors around mid April (Apr 18–May 9) in Toronto, based on its local frost dates. Confidence 88%.
How long is the growing season in Toronto?
Toronto has roughly 150 frost-free days, which is enough time to grow kale to maturity outdoors.