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🥬 Growing Lettuce, Winter Density in Zone 3b
Zone 3b has harsh winters and a short growing season. Start Lettuce, Winter Density early indoors to maximize your harvest window. Last frost: May 15. First frost: Sep 22.
Planting Calendar
Season: May 15 – Sep 22 (130 days) · Succession: plant every 2 weeks (up to 5x)
When to Plant Lettuce, Winter Density in Zone 3b
Start Seeds Indoors: Apr 3
Start Lettuce, Winter Density seeds indoors around Apr 3 (6 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 4–10 days.
Transplant Outdoors: Apr 24
Transplant Lettuce, Winter Density seedlings outdoors after Apr 24. Wait until soil temperature reaches 40°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.
Harvest: May 29
First harvest approximately May 29 (~35 days from transplant). Continue harvesting until first frost (Sep 22).
Fall Planting: Jul 28
For a fall harvest, plant Lettuce, Winter Density around Jul 28 (8 weeks before first frost).
Companion Planting
Lettuce, Winter Density in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bPlan Your Lettuce, Winter Density Garden
Track Lettuce, Winter Density from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Lettuce, Winter Density Growing Guide