When to plant lettuce in St. Louis
Common questions
When can I sow lettuce outdoors in St. Louis?
Direct-sow around early March (Mar 2–Mar 23) in St. Louis, based on its local frost dates. Confidence 84%.
When will lettuce be ready to harvest in St. Louis?
Expect to harvest from around late April (Apr 23–May 8) in St. Louis, based on its local frost dates. Confidence 76%.
When should I start lettuce seeds indoors in St. Louis?
Start seeds indoors around early March (Mar 2–Mar 23) in St. Louis, based on its local frost dates. Confidence 80%.
When can I transplant lettuce outdoors in St. Louis?
Transplant outdoors around early March (Mar 9–Mar 30) in St. Louis, based on its local frost dates. Confidence 84%.
Can I plant lettuce in autumn in St. Louis?
Yes — St. Louis supports a second, autumn sowing of lettuce around early August (Aug 6–Aug 20), timed to mature before the first fall frost.
How long is the growing season in St. Louis?
St. Louis has roughly 218 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 St. Louis's frost dates.