When to plant lettuce in Duluth
Common questions
When can I sow lettuce outdoors in Duluth?
Direct-sow around late April (Apr 22–May 13) in Duluth, based on its local frost dates. Confidence 84%.
When will lettuce be ready to harvest in Duluth?
Expect to harvest from around early June (Jun 6–Jun 21) in Duluth, based on its local frost dates. Confidence 78%.
When should I start lettuce seeds indoors in Duluth?
Start seeds indoors around mid April (Apr 12–May 3) in Duluth, based on its local frost dates. Confidence 83%.
When can I transplant lettuce outdoors in Duluth?
Transplant outdoors around late April (Apr 22–May 13) in Duluth, based on its local frost dates. Confidence 84%.
Can I plant lettuce in autumn in Duluth?
Yes — Duluth supports a second, autumn sowing of lettuce around early July (Jul 5–Jul 19), timed to mature before the first fall frost.
How long is the growing season in Duluth?
Duluth has roughly 150 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 Duluth's frost dates.