my LocalPlanting

When to Plant Cauliflower in North Miami, Oklahoma (74358)

Location

North Miami, Oklahoma

ZIP Code

74358

USDA Zone

6b

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Start Seeds Indoors Wednesday, March 4, 2026
Transplant Outdoors Wednesday, April 15, 2026

Pro Tip: Start Cauliflower seeds indoors 6 weeks before your last frost date, then transplant outdoors around Wednesday, April 15, 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 North Miami?

Get your seeds now so they're ready by Wednesday, March 4, 2026.

* Affiliate links — we may earn a small commission at no extra cost to you.

🤝 Good Companions

BeetCeleryBeanOnion

⚠️ Avoid Planting Near

StrawberryTomato

Other Plants for North Miami

Growing Cauliflower in Zone 6b

Cauliflower (Brassica oleracea var. botrytis) is a popular garden vegetable. In North Miami, Oklahoma, which is in USDA Hardiness Zone 6b, you should start seeds indoors around Wednesday, March 4, 2026.

Your average last frost date is Wednesday, April 15, 2026. Plan to transplant your Cauliflower seedlings outdoors around Wednesday, April 15, 2026, about 0 weeks after your last frost date.