Growing cauliflower in zone 9a

In USDA zone 9a, the typical last spring frost is March 2 and the first fall frost is November 26. Here is when to plant cauliflower against those dates.

Start seeds indoorsDecember 29 to January 12

Transplant outdoorsFebruary 16 to February 23

Direct sow outdoorsFebruary 16 to February 23

Plant in fallSeptember 17 to October 22

These are zone 9a averages

Computed from 2,196 ZIP codes in zone 9a. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.

Get my exact dates

USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service / Oregon State University PRISM Group. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020. Planting windows for cauliflower from Utah State University Extension. Zone dates are medians; local conditions vary.