When to plant broccoli in Portland
Common questions
When will broccoli be ready to harvest in Portland?
Expect to harvest from around late February (Feb 24–Mar 21) in Portland, based on its local frost dates. Confidence 79%.
When should I start broccoli 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 broccoli outdoors in Portland?
Transplant outdoors around late December (Dec 26–Jan 16) in Portland, based on its local frost dates. Confidence 85%.
Can I plant broccoli in autumn in Portland?
Yes — Portland supports a second, autumn sowing of broccoli around early August (Aug 8–Aug 22), 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 broccoli to maturity outdoors.
Sow broccoli 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.