Kohlrabi
Brassica oleracea var. gongylodes
In a typical UK garden, sow indoors early March to early April, sow outside early April to late August, plant out early April to mid-May, and harvest late May to late November.
When to sow, plant and harvest
Last frost around 20 April, first frost around 31 October.
- Sow indoors
- early March to early April
- Sow outdoors
- early April to late August
- Plant out
- early April to mid-May
- Harvest
- late May to late November
Growing facts
- Spacing
- 15 cm apart, rows 30 cm apart
- Square foot
- 4 per square (30 cm squares)
- Sowing depth
- 1 cm
- Ready in
- 35 to 55 days from planting out
- Grows to
- 30 cm
- Hardiness
- Hardy to about -8 °C
- Sun
- Full sun
- Crops for
- About 3 weeks
Growing tip
Pull when golf- to tennis-ball size; bigger stems turn woody, especially if the soil dries out.
Neighbours
Brassicas are one crop rotation group. Try not to grow them where any of the family grew in the last two or three years. How crop rotation works
More brassicas
Where these figures come from
Every crop in VegLog was checked against published growing advice. Dates are worked out from average frost dates, so they shift with your garden. For kohlrabi, we used:
Grow kohlrabi with VegLog
Add kohlrabi to a bed and VegLog reminds you when to sow, plant out and pick, timed to your own town's frost dates.
