When to plant lettuce in Phoenix
Common questions
When can I sow lettuce outdoors in Phoenix?
Direct-sow around late December (Dec 30–Jan 20) in Phoenix, based on its local frost dates. Confidence 82%.
When will lettuce be ready to harvest in Phoenix?
Expect to harvest from around early February (Feb 10–Feb 25) in Phoenix, based on its local frost dates. Confidence 74%.
When should I start lettuce seeds indoors in Phoenix?
Start seeds indoors around late December (Dec 30–Jan 20) in Phoenix, based on its local frost dates. Confidence 78%.
When can I transplant lettuce outdoors in Phoenix?
Transplant outdoors around late December (Dec 27–Jan 17) in Phoenix, based on its local frost dates. Confidence 80%.
Can I plant lettuce in autumn in Phoenix?
Yes — Phoenix supports a second, autumn sowing of lettuce around early September (Sep 6–Sep 20), timed to mature before the first fall frost.
How long is the growing season in Phoenix?
Phoenix has roughly 314 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 Phoenix's frost dates.