When to Plant Cabbage in Colebrook, Connecticut (06021)

Location

Colebrook, Connecticut

ZIP Code

06021

USDA Zone

Last Frost

Monday, April 20, 2026

📅 Planting Calendar

Start Seeds Indoors Monday, March 9, 2026

Transplant Outdoors Monday, April 20, 2026

Pro Tip: Start Cabbage seeds indoors 6 weeks before your last frost date, then transplant outdoors around Monday, April 20, 2026.

🌿 Plant Details

Scientific Name Brassica oleracea var. capitata

Days to Maturity 70 days

Mature Height 12-18"

Spread 24"

Type Head

Fruit Size Large (2-5 lb head)

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (1-1.5 inches/week)

↔️

Spacing

18" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 4-10 days

Ready to Plant Cabbage in Colebrook?

Get your seeds now so they're ready by Monday, March 9, 2026.

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🤝 Good Companions

CeleryDillOnionPotatoChamomile

⚠️ Avoid Planting Near

StrawberryTomatoGrape

Other Plants for Colebrook

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Growing Cabbage in Zone 6a

Cabbage (Brassica oleracea var. capitata) is a popular garden vegetable. In Colebrook, Connecticut, which is in USDA Hardiness Zone 6a, you should start seeds indoors around Monday, March 9, 2026.

Your average last frost date is Monday, April 20, 2026. Plan to transplant your Cabbage seedlings outdoors around Monday, April 20, 2026, about 0 weeks after your last frost date.