When to Plant Cauliflower in Fairbanks, Alaska (99708)

Location

Fairbanks, Alaska

ZIP Code

99708

USDA Zone

Last Frost

Monday, June 1, 2026

📅 Planting Calendar

Start Seeds Indoors Monday, April 20, 2026

Transplant Outdoors Monday, June 1, 2026

Pro Tip: Start Cauliflower seeds indoors 6 weeks before your last frost date, then transplant outdoors around Monday, June 1, 2026.

🌿 Plant Details

Scientific Name Brassica oleracea var. botrytis

Days to Maturity 75 days

Mature Height 18-24"

Spread 24"

Type Head

Fruit Size Medium (6-8 inch head)

☀️ Growing Requirements

☀️

Sun

Full Sun (6 hours)

💧

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 Cauliflower in Fairbanks?

Get your seeds now so they're ready by Monday, April 20, 2026.

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🤝 Good Companions

BeetCeleryBeanOnion

⚠️ Avoid Planting Near

StrawberryTomato

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Growing Cauliflower in Zone 2a

Cauliflower (Brassica oleracea var. botrytis) is a popular garden vegetable. In Fairbanks, Alaska, which is in USDA Hardiness Zone 2a, you should start seeds indoors around Monday, April 20, 2026.

Your average last frost date is Monday, June 1, 2026. Plan to transplant your Cauliflower seedlings outdoors around Monday, June 1, 2026, about 0 weeks after your last frost date.