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🥬 Growing Lettuce in Zone 1b

Zone 1b has harsh winters and a short growing season. Start Lettuce early indoors to maximize your harvest window. Last frost: May 25. First frost: Aug 28.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 13Aug 28

Season: May 25 – Aug 28 (95 days) · Succession: plant every 2 weeks (up to 3x)

Zone1b

Last FrostMay 25

First FrostAug 28

Season Length95 days

Days to Harvest45

SunPart Sun / Part Shade

Frost ToleranceLight

Spacing4/sqft (6" apart)

When to Plant Lettuce in Zone 1b

Start Seeds Indoors: Apr 13

Start Lettuce seeds indoors around Apr 13 (6 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 4–10 days.

Transplant Outdoors: May 4

Transplant Lettuce seedlings outdoors after May 4. Wait until soil temperature reaches 40°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Jun 8

First harvest approximately Jun 8 (~35 days from transplant). Continue harvesting until first frost (Aug 28).

Fall Planting: Jul 3

For a fall harvest, plant Lettuce around Jul 3 (8 weeks before first frost).

Companion Planting

✅ Strawberries✅ Carrots✅ Beets✅ Cucumbers✅ Radishes

Lettuce 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 13b

Frequently Asked Questions

When should I plant Lettuce in Zone 1b?

Start Lettuce seeds indoors around Apr 13. Transplant outdoors after May 4. Expect first harvest around Jun 8.

What is the last frost date for Zone 1b?

The average last spring frost date for Zone 1b is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Lettuce in Zone 1b?

Yes. Lettuce needs 45 days to harvest. Zone 1b has a 95-day growing season, which is sufficient. You can plant up to 3 successions.

What is the best month to plant Lettuce in Zone 1b?

The best time to start Lettuce in Zone 1b is Apr. Begin seeds indoors around Apr 13, then transplant outdoors after the last frost date of May 25.

What companion plants grow well with Lettuce?

Good companion plants for Lettuce include Strawberries, Carrots, Beets, Cucumbers, Radishes.

How long does Lettuce take to harvest?

Lettuce takes approximately 45 days from planting to harvest. In Zone 1b, expect your first harvest around Jun 8.

Plan Your Lettuce Garden

Track Lettuce from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Lettuce Growing Guide