When to plant cauliflower in Montreal
Common questions
When will cauliflower be ready to harvest in Montreal?
Expect to harvest from around late June (Jun 25–Jul 20) in Montreal, based on its local frost dates. Confidence 76%.
When should I start cauliflower seeds indoors in Montreal?
Start seeds indoors around early March (Mar 8–Mar 29) in Montreal, based on its local frost dates. Confidence 81%.
When can I transplant cauliflower outdoors in Montreal?
Transplant outdoors around late April (Apr 26–May 17) in Montreal, based on its local frost dates. Confidence 82%.
Can I plant cauliflower in autumn in Montreal?
Yes — Montreal supports a second, autumn sowing of cauliflower around early July (Jul 4–Jul 18), timed to mature before the first fall frost.
How long is the growing season in Montreal?
Montreal has roughly 192 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 Montreal's frost dates.