Growing kohlrabi in zone 9b

(Zone 9b = an average winter low of 25°F to 30°F.)

In USDA zone 9b, the typical last spring frost is February 1 and the first fall frost is December 9. Here is when to plant kohlrabi against those dates.

Direct sow outdoorsJanuary 4 to January 18

Expected harvestFebruary 23 to March 19About 50 to 60 days from sowing.

Plant in fallSeptember 16 to October 14

These are zone 9b averages

Computed from 2,081 ZIP codes in zone 9b. 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.