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How to Grow Cauliflower

Cauliflower (Brassica oleracea var. botrytis)

Ready to grow Cauliflower?

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🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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Find Your Cauliflower Planting Dates

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🌿 Plant Overview

Scientific Name Brassica oleracea var. botrytis
Category vegetable
Type Head
Days to Maturity 75 days
Starting Method Start Indoors

☀️ Growing Requirements

☀️

Sun

Full Sun (6 hours)

💧

Water

Regular (1-1.5 inches/week)

↔️

Spacing

18" apart

🌱

Depth

0.5" deep

📏

Height

18-24"

🌱

Germination

4-10 days

Ready to Grow Cauliflower?

Find quality seeds from trusted suppliers.

🛒 Buy on Amazon 🌿 True Leaf Market

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🤝 Good Companions

BeetCeleryBeanOnion

⚠️ Avoid Planting Near

StrawberryTomato

Cauliflower Planting Calendar by Zone

Zone 1a Zone 1b Zone 2a Zone 2b Zone 3a Zone 3b Zone 4a Zone 4b Zone 5a Zone 5b Zone 6a Zone 6b Zone 7a Zone 7b Zone 8a Zone 8b Zone 9a Zone 9b Zone 10a Zone 10b Zone 11a Zone 11b Zone 12a Zone 12b Zone 13a

Cauliflower Planting Calendar by State

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Frequently Asked Questions

When should I plant Cauliflower? +

Start Cauliflower seeds indoors 6 weeks before your last frost date, then transplant outdoors 0 weeks after the last frost. Use the search on this page to find exact dates for your ZIP code or city.

How long does Cauliflower take to grow? +

Cauliflower typically matures in about 75 days from planting. Exact timing varies by variety, soil conditions, and local climate.

Should I start Cauliflower indoors or direct sow? +

Cauliflower should be started indoors 6 weeks before the last frost date. This gives seedlings time to establish before being transplanted outside after frost danger has passed.

How much sun does Cauliflower need? +

Cauliflower requires full sun (6 hours) to thrive.

How far apart should I plant Cauliflower? +

Space Cauliflower plants 18 inches apart to allow adequate airflow and root development.

How much water does Cauliflower need? +

Cauliflower has regular (1-1.5 inches/week) water needs. Consistent moisture is important especially during germination and early growth.

About Cauliflower

More finicky than broccoli. Blanch heads by tying leaves over curd for white varieties.

Expect your Cauliflower to be ready for harvest in approximately 75 days from planting.

Use the search above or browse by zone or state to find the perfect planting dates for your location.