Kohlrabi
How to grow kohlrabi
Brassica oleracea var. gongylodes
Get your exact dates
The windows below are relative to your frost dates. Enter your ZIP for the calendar dates.
Open the planting calendarWhen to plant kohlrabi
Direct sow4 weeks before your last spring frost to 2 weeks before your last spring frost
Fall planting12 weeks before your first fall frost to 8 weeks before your first fall frost
Growing conditions
- Days to maturity
- 50 to 60 (from sowing)
- Spacing
- 4 to 8 in apart, rows 18 in
- Planting depth
- 0.5 in
- Sun
- Full sun
- Water
- 1 in per week
- Soil pH
- 6 to 7.5
Common problems
Kohlrabi by hardiness zone
Planting dates for a typical location in each zone:
Sources
- Iowa State University Extension and Outreach: Growing Kohlrabi in the Home Garden
- University of Minnesota Extension: Growing kohlrabi in home gardens
Last updated 2026-06-13.