Vegetable · Brassicaceae family
kohlrabi
Brassica oleracea var. gongylodes
In short a 10-second read
Kohlrabi (vegetable) grows to 0.25–0.3 m tall and 0.25–0.3 m wide when mature. It grows best in full sun, in average to moist soil. Sow in March–July. Harvest in May–October.
× spread 0.25–0.3 m
Where to plant
Sun and soil.
It grows best in full sun, in average to moist soil.
Sun
Elsewhere it will grow less well.
Soil and water
average to moist · watering: moderate
Soil: loamy, humus-rich
Soil pH 6–7.5
How much space it takes
Mature size.
The mature plant next to a person (175 cm).
Next to a person
The final size depends on the cultivar and the spot — we give the range from smallest to largest.
Calendar
What to do and when.
Months for Central Europe. The line shows the current month.
The year at a glance
Sowing
direct sowing: March–July
Harvest
May–October
Winter protection
does not overwinter
What to combine it with
Ready-made combinations.
Ready-made Studio combinations that include kohlrabi
Lettuce, chard, pepper and kohlrabi — a simple vegetable bed for the…
Frequently asked
Quick answers.
When do I sow kohlrabi?
In March–July (direct sowing).
When is kohlrabi harvested?
In May–October.
Does kohlrabi tolerate shade?
No, it needs full sun.
How much space does kohlrabi need?
At maturity 0.25–0.3 m wide and 0.25–0.3 m tall; recommended spacing 15 cm.
Where the data comes from
The data is indicative — we are still comparing it with further sources. Last checked 2 September 2026.
Show sources (4)
- NC State Extension Gardener Plant Toolbox
- RHS — How to grow kohl rabi
- Wikidata (CC0) — Brassica oleracea var. gongylodes
- Invasive plant lists — this species is not on them: EU
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