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When to Plant Heirloom Tomato in Zone 1B

USDA Zone

1B

Cities Covered

11

Avg Last Frost

Thursday, June 10, 2027

Plant Type

Indoor Start

📅 Planting Calendar for Zone 1B

Start Seeds Indoors Thursday, April 29, 2027
Transplant Outdoors Thursday, June 24, 2027

Pro Tip: Start Heirloom Tomato seeds indoors 6 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Solanum lycopersicum
Days to Maturity 80 days
Sun Requirements Full Sun (6-8 hours)
Plant Spacing 30" apart

🤝 Companion Plants for Heirloom Tomato

Good Companions

BasilCarrotParsleyMarigoldBorage

Avoid Planting Near

BrassicasFennelCornKohlrabi
See the full companion planting guide for Heirloom Tomato →

Cities in Zone 1B

Other Plants for Zone 1B

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Growing Heirloom Tomato in USDA Zone 1B

Heirloom Tomato (Solanum lycopersicum) grows well in USDA Hardiness Zone 1B. This zone includes cities like Arctic Village, Bettles Field, Chicken and 8 more.

The average last frost date for Zone 1B is around Thursday, June 10, 2027. For best results, start your Heirloom Tomato seeds indoors around Thursday, April 29, 2027, then transplant outdoors around Thursday, June 24, 2027.

Expect to harvest your Heirloom Tomato approximately 80 days after planting.