When to plant cauliflower in Toronto
Common questions
When will cauliflower be ready to harvest in Toronto?
Expect to harvest from around late June (Jun 24–Jul 19) in Toronto, based on its local frost dates. Confidence 75%.
When should I start cauliflower seeds indoors in Toronto?
Start seeds indoors around late March (Mar 22–Apr 12) in Toronto, based on its local frost dates. Confidence 79%.
When can I transplant cauliflower outdoors in Toronto?
Transplant outdoors around late April (Apr 25–May 16) in Toronto, based on its local frost dates. Confidence 81%.
Can I plant cauliflower in autumn in Toronto?
Yes — Toronto supports a second, autumn sowing of cauliflower around mid June (Jun 18–Jul 2), timed to mature before the first fall frost.
How long is the growing season in Toronto?
Toronto has roughly 160 frost-free days, which is enough time to grow cauliflower to maturity outdoors.
Sow cauliflower as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and Toronto's frost dates.