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When to Plant Cabbage in Rolla, North Dakota (58367)

Location

Rolla, North Dakota

ZIP Code

58367

USDA Zone

3b

Last Frost

Wednesday, May 20, 2026

📅 Planting Calendar

Start Seeds Indoors Wednesday, April 8, 2026
Transplant Outdoors Wednesday, May 20, 2026

Pro Tip: Start Cabbage seeds indoors 6 weeks before your last frost date, then transplant outdoors around Wednesday, May 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 Rolla?

Get your seeds now so they're ready by Wednesday, April 8, 2026.

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🤝 Good Companions

CeleryDillOnionPotatoChamomile

⚠️ Avoid Planting Near

StrawberryTomatoGrape

Other Plants for Rolla

Growing Cabbage in Zone 3b

Cabbage (Brassica oleracea var. capitata) is a popular garden vegetable. In Rolla, North Dakota, which is in USDA Hardiness Zone 3b, you should start seeds indoors around Wednesday, April 8, 2026.

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