Growing kohlrabi in zone 9a

(Zone 9a = an average winter low of 20°F to 25°F.)

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 kohlrabi against those dates.

Direct sow outdoorsFebruary 2 to February 16

Expected harvestMarch 24 to April 17About 50 to 60 days from sowing.

Plant in fallSeptember 3 to October 1

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 kohlrabi from Iowa State University Extension and Outreach. Zone dates are medians; local conditions vary.