🥬 Kohlrabi: Growing Guide
Kohlrabi (Brassica oleracea gongylodes) grows best in full sun with moderate watering, and does well at 5–25 °C (41–77 °F) in soil with a pH of 6.0–7.5. Space plants about 25 cm (9.8 in) apart. Expect 45–60 days.
Quick facts
| Scientific name | Brassica oleracea gongylodes |
|---|---|
| Category | Vegetables |
| Sunlight | Full sun |
| Watering | Moderate |
| Plant spacing | 25 cm (9.8 in) |
| Soil pH | 6.0–7.5 |
| Comfortable temperature | 5–25 °C (41–77 °F) |
| Time to maturity | 45–60 days |
| Sowing depth | 0.5 cm (0.2 in) |
| Height | 30–50 cm (12–20 in) |
When to sow, plant and harvest
The calendar below shows the best months in each climate zone. Pick the zone closest to your garden.
| J | F | M | A | M | J | J | A | S | O | N | D | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mediterranean | Sow | Plant out | Harvest | Sow | Plant out | Harvest | ||||||
| Continental | Sow | Plant out | Harvest | Sow | Plant out | Harvest | ||||||
| Oceanic | Sow | Sow | Plant out | Harvest | Sow | Plant out | Harvest | |||||
| Subtropical | Sow | Plant out | Harvest | Harvest | Sow | Plant out | Harvest | Harvest | ||||
| Tropical | Sow | Plant out | Harvest | Harvest | Sow | Plant out | Harvest | |||||
| Cold / Northern | Sow | Plant out | Harvest | Harvest | Sow | |||||||
| Arid / Semi-arid | Sow | Plant out | Harvest | Harvest | Sow | Plant out | Harvest |
- Mediterranean (Greece, Spain, Italy, coastal Turkey): Sow: Mar, Sep · Plant out: Apr, Oct · Harvest: May, Nov.
- Continental (Central/Northern Europe, inland Balkans): Sow: Mar, Aug · Plant out: Apr, Sep · Harvest: May, Oct.
- Oceanic (UK, France, Belgium, Netherlands, NW Europe): Sow: Feb–Mar, Aug · Plant out: Apr, Sep · Harvest: May, Oct.
- Subtropical (Southern US, N. Africa, Middle East): Sow: Jan, Aug · Plant out: Feb, Sep · Harvest: Mar–Apr, Oct–Nov.
- Tropical (SE Asia, Sub-Saharan Africa, Amazon): Sow: Jan, Jul · Plant out: Feb, Aug · Harvest: Mar–Apr, Sep.
- Cold / Northern (Scandinavia, Canada, Russia, Alpine): Sow: Apr, Aug · Plant out: May · Harvest: Jun–Jul.
- Arid / Semi-arid (Arabian Peninsula, inland Australia): Sow: Feb, Aug · Plant out: Mar, Sep · Harvest: Apr–May, Oct.
Watering
Water about every 3 days in summer and about every 8 days in winter. Steady moisture.
Growing tips
Green or purple. Sweet and crunchy. Eaten raw or cooked. Fast!
Good companion plants
These plants grow well alongside it:
Common pests and problems
Frequently asked questions
Kohlrabi: when should I sow and plant it?
Mediterranean (Greece, Spain, Italy, coastal Turkey): Sow: Mar, Sep · Plant out: Apr, Oct · Harvest: May, Nov. Continental (Central/Northern Europe, inland Balkans): Sow: Mar, Aug · Plant out: Apr, Sep · Harvest: May, Oct. Oceanic (UK, France, Belgium, Netherlands, NW Europe): Sow: Feb–Mar, Aug · Plant out: Apr, Sep · Harvest: May, Oct.
Kohlrabi: how often should I water it?
Water about every 3 days in summer and about every 8 days in winter. Steady moisture.
Kohlrabi: how far apart should I plant it?
Plant about 25 cm (9.8 in) apart and sow at a depth of about 0.5 cm (0.2 in).
Kohlrabi: how long does it take to grow?
Plan on 45–60 days.
Kohlrabi: which plants grow well with it?
Beetroot, Onion.
Kohlrabi: which pests and problems should I watch for?
Cabbage aphid.
Plan your garden
Add Kohlrabi to your garden design in the free GardenXPro planner: drag plants onto a 2D plan, preview it in 3D, check companions and get watering reminders.
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