When to plant cauliflower in zone 9b

A planting schedule for cauliflower in USDA hardiness zone 9b, where the typical last spring frost is around Feb 2, 2026 and the first fall frost around Dec 2, 2026. Dates are computed from NOAA frost normals for a representative location (ZIP 94271) — your exact dates depend on your address.

Cauliflower planting schedule for zone 9b

Start seeds indoorsDec 24, 2025 – Dec 10, 2026
Start hardening offJan 25, 2026 – Dec 31, 2026
Transplant outdoorsFeb 4, 2026 – Jan 7, 2027

Playing it safe with tender crops? Spring frost holds off until about Mar 4, 2026 in roughly 9 years out of 10.

Zone 9b covers a lot of ground. Enter your ZIP for cauliflower dates worked out from your nearest weather station:

Free on one garden — no credit card. See the full cauliflower growing guide or the whole zone 9b calendar.

Cauliflower in other zones

More crops for zone 9b

Frost dates are NOAA 1991–2020 climate normals for a representative location (ZIP 94271) in zone 9b; your exact dates depend on your address. Schedules are guidance, not guarantees.