Field guide
When to plant kohlrabi in USDA Zones 11–13
In USDA Zones 11–13, the planner’s broad outdoor planting window for kohlrabi runs from October to January. Kohlrabi takes 45–60 days from planting to first harvest.
Open plannerPlanting calendar for USDA Zones 11–13
- Spring planting
- October to January
- Fall planting
- Not recommended
- Days to harvest
- 45–60 days
- Water needs
- medium
What USDA Zones 11–13 do—and do not—tell you
These zones span average annual extreme minimum temperatures of roughly 40°F to 70°F. That is useful climate context, but it does not determine your exact frost dates. Check a local forecast or county Extension calendar before planting tender crops.
How to know when to harvest
- Bulb is 2-3 inches in diameter (tennis ball size)
- Skin is smooth and tender
- Larger bulbs become woody and fibrous — don't wait too long
Want a plan that accounts for your crops, growing method, equipment, and plant conditions? Open the free planner for a daily crop checklist and adaptive harvest forecast.
About this field guide
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