When should I plant Lettuce, Tom Thumb in Zone 5b?

Start Lettuce, Tom Thumb seeds indoors around Mar 17. Transplant outdoors after Apr 7. Expect first harvest around May 12.

What is the last frost date for Zone 5b?

The average last spring frost date for Zone 5b is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.

Can I grow Lettuce, Tom Thumb in Zone 5b?

Yes. Lettuce, Tom Thumb needs 50 days to harvest. Zone 5b has a 163-day growing season, which is sufficient. You can plant up to 8 successions.

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🥬 Growing Lettuce, Tom Thumb in Zone 5b

Zone 5b has cold winters and a moderate growing season. Timing is key for Lettuce, Tom Thumb in this zone. Last frost: Apr 28. First frost: Oct 8.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 17Oct 8

Season: Apr 28 – Oct 8 (163 days) · Succession: plant every 2 weeks (up to 8x)

Zone5b

Last FrostApr 28

First FrostOct 8

Season Length163 days

Days to Harvest50

SunPart Sun / Part Shade

Frost ToleranceLight

Spacing4/sqft (6" apart)

When to Plant Lettuce, Tom Thumb in Zone 5b

Start Seeds Indoors: Mar 17

Start Lettuce, Tom Thumb seeds indoors around Mar 17 (6 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 4–10 days.

Transplant Outdoors: Apr 7

Transplant Lettuce, Tom Thumb seedlings outdoors after Apr 7. 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 12

First harvest approximately May 12 (~35 days from transplant). Continue harvesting until first frost (Oct 8).

Fall Planting: Aug 13

For a fall harvest, plant Lettuce, Tom Thumb around Aug 13 (8 weeks before first frost).

Companion Planting

✅ Strawberries✅ Carrots✅ Beets✅ Cucumbers✅ Radishes

Lettuce, Tom Thumb 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

Plan Your Lettuce, Tom Thumb Garden

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

Start Free Lettuce, Tom Thumb Growing Guide