When to plant lettuce in Chicago
Common questions
When can I sow lettuce outdoors in Chicago?
Direct-sow around late March (Mar 24–Apr 14) in Chicago, based on its local frost dates. Confidence 81%.
When will lettuce be ready to harvest in Chicago?
Expect to harvest from around early May (May 8–May 23) in Chicago, based on its local frost dates. Confidence 76%.
When should I start lettuce seeds indoors in Chicago?
Start seeds indoors around mid March (Mar 13–Apr 3) in Chicago, based on its local frost dates. Confidence 80%.
When can I transplant lettuce outdoors in Chicago?
Transplant outdoors around late March (Mar 24–Apr 14) in Chicago, based on its local frost dates. Confidence 81%.
Can I plant lettuce in autumn in Chicago?
Yes — Chicago supports a second, autumn sowing of lettuce around mid July (Jul 20–Aug 3), timed to mature before the first fall frost.
How long is the growing season in Chicago?
Chicago has roughly 206 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 Chicago's frost dates.