When to plant lettuce in Columbia
Common questions
When can I sow lettuce outdoors in Columbia?
Direct-sow around mid February (Feb 11–Mar 4) in Columbia, based on its local frost dates. Confidence 88%.
When will lettuce be ready to harvest in Columbia?
Expect to harvest from around early April (Apr 4–Apr 19) in Columbia, based on its local frost dates. Confidence 79%.
When should I start lettuce seeds indoors in Columbia?
Start seeds indoors around mid February (Feb 11–Mar 4) in Columbia, based on its local frost dates. Confidence 84%.
When can I transplant lettuce outdoors in Columbia?
Transplant outdoors around mid February (Feb 18–Mar 11) in Columbia, based on its local frost dates. Confidence 88%.
Can I plant lettuce in autumn in Columbia?
Yes — Columbia supports a second, autumn sowing of lettuce around mid August (Aug 15–Aug 29), timed to mature before the first fall frost.
How long is the growing season in Columbia?
Columbia has roughly 248 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 Columbia's frost dates.