When to plant cauliflower in Portland
Common questions
When will cauliflower be ready to harvest in Portland?
Expect to harvest from around mid April (Apr 16–May 11) in Portland, based on its local frost dates. Confidence 79%.
When should I start cauliflower seeds indoors in Portland?
Start seeds indoors around mid January (Jan 18–Feb 8) in Portland, based on its local frost dates. Confidence 84%.
When can I transplant cauliflower outdoors in Portland?
Transplant outdoors around mid February (Feb 15–Mar 8) in Portland, based on its local frost dates. Confidence 88%.
Can I plant cauliflower in autumn in Portland?
Yes — Portland supports a second, autumn sowing of cauliflower around mid July (Jul 18–Aug 1), timed to mature before the first fall frost.
How long is the growing season in Portland?
Portland has roughly 266 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 Portland's frost dates.