Growing kohlrabi in zone 5a

(Zone 5a = an average winter low of -20°F to -15°F.)

In USDA zone 5a, the typical last spring frost is May 3 and the first fall frost is October 5. Here is when to plant kohlrabi against those dates.

Direct sow outdoorsApril 5 to April 19

Expected harvestMay 25 to June 18About 50 to 60 days from sowing.

Plant in fallJuly 13 to August 10

These are zone 5a averages

Computed from 2,383 ZIP codes in zone 5a. 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.