When to plant lettuce in Boise
Common questions
When can I sow lettuce outdoors in Boise?
Direct-sow around early April (Apr 4–Apr 25) in Boise, based on its local frost dates. Confidence 89%.
When will lettuce be ready to harvest in Boise?
Expect to harvest from around late May (May 26–Jun 10) in Boise, based on its local frost dates. Confidence 80%.
When should I start lettuce seeds indoors in Boise?
Start seeds indoors around early April (Apr 4–Apr 25) in Boise, based on its local frost dates. Confidence 85%.
When can I transplant lettuce outdoors in Boise?
Transplant outdoors around mid April (Apr 11–May 2) in Boise, based on its local frost dates. Confidence 89%.
Can I plant lettuce in autumn in Boise?
Yes — Boise supports a second, autumn sowing of lettuce around early July (Jul 8–Jul 22), timed to mature before the first fall frost.
How long is the growing season in Boise?
Boise has roughly 168 frost-free days, which is enough time to grow lettuce to maturity outdoors.
Sow lettuce 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 Boise's frost dates.