Brassicas · cool season
Kohlrabi
Brassica oleracea var. gongylodes
Fast, crisp, and underused. A 50-day crop that fits both ends of the Ohio season.
- When to plant in Ohio
- Direct sow April and again August
- Harvest window
- May–June and October
- Days to maturity
- 45–60
- Spacing
- 6–8 in.
- Light
- Full sun
How to grow it
Sow ¼ in. deep. Harvest when bulbs are tennis-ball size—larger ones get woody. Early White Vienna and Purple Vienna are standards. Eat raw or roast. Row cover keeps flea beetles from pitting the skin.
Related brassicas
Broccoli 55–80 from transplant
Cauliflower 60–85 from transplant
Cabbage 60–100 depending on type
Brussels sprouts 90–110 from transplant