Cauliflower Planting Guide

Quick Facts

Sunlight ☀️ Full Sun

Water Needs 💧💧 Moderate

Spacing 18 inches apart

Planting Depth 0.5 inch

Min Soil Temp 40°F

Germination 5–10 days

Days to Maturity 55–80 days

Frost Tolerance Light frost tolerance

Soil pH 6.0–7.0

Difficulty Hard

Planting Schedule by Zone

Select your USDA zone below for a detailed guide with tips specific to your region.

Zone 3 Zone 3a Zone 3b Zone 4 Zone 4a Zone 4b Zone 5 Zone 5a Zone 5b Zone 6 Zone 6a Zone 6b Zone 7 Zone 7a Zone 7b Zone 8 Zone 8a Zone 8b Zone 9 Zone 9a Zone 9b Zone 10 Zone 10a Zone 10b Zone 11 Zone 11a Zone 11b

Zone	Start Indoors	Transplant	Direct Sow	Harvest Start	Harvest End
Zone 3	Mar 27	May 15	—	Jul 16	Sep 9
Zone 4	Mar 22	May 10	—	Jul 11	Sep 4
Zone 5	Mar 12	Apr 30	—	Jul 1	Aug 25
Zone 6	Feb 25	Apr 15	—	Jun 16	Aug 10
Zone 7	Feb 15	Apr 5	—	Jun 6	Jul 31
Zone 8	Jan 30	Mar 20	—	May 21	Jul 15
Zone 9	Jan 10	Feb 28	—	May 1	Jun 25
Zone 10	Dec 23	Feb 10	—	Apr 13	Jun 7
Zone 11	Dec 17	Jan 15	—	Mar 18	May 12

What you'll need — Your Zone

🛒 Cauliflower — Seeds & Supplies

🌱 Cauliflower Seeds

Search for these at your local garden center or nursery.

Companion Planting

Companion planting improves growth, deters pests, and makes better use of garden space.

✓ Good Companions

Celery Onion

✗ Avoid Nearby

Tomato Strawberry

📚 Data Sources

Frost dates: NOAA Climate Normals 1991–2020, National Centers for Environmental Information.
Hardiness zones: USDA Plant Hardiness Zone Map, Agricultural Research Service.
Growing requirements: Cooperative Extension Services — NC State, Penn State, University of Florida IFAS.
Companion planting: Cornell University Cooperative Extension.
Data compiled from public agricultural sources. Always verify with your local extension office for micro-climate adjustments.