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Sprout Authority

Growing kohlrabi in zone 6b

(Zone 6b = an average winter low of -5°F to 0°F.)

In USDA zone 6b, the typical last spring frost is April 23 and the first fall frost is October 22. Here is when to plant kohlrabi against those dates.

Direct sow outdoorsMarch 26 to April 9
Expected harvestMay 15 to June 8About 50 to 60 days from sowing.
Plant in fallJuly 30 to August 27

These are zone 6b averages

Computed from 5,242 ZIP codes in zone 6b. 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.