Kohlrabi
Brassica oleracea var. gongylodes
vegetableKohlrabi is a quick-growing brassica that produces a swollen stem (knob) above ground with a mild, turnip-like flavor. It matures in 45–60 days and is more cold-tolerant than heat-tolerant, making it ideal for spring and fall gardens. Both the stem knob and tender leaves are edible.
Common Problems
Select the problem your Kohlrabi is experiencing to get a treatment guide.
Care Guide
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Light
Full sun, 6–8 hours daily; light afternoon shade in hot climates beneficial
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Water
Keep soil consistently moist with 1–1.5 inches per week; irregular watering causes tough, woody texture
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Soil
Well-draining, fertile loam with pH 6.0–7.5; add compost before planting
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Fertiliser
Apply balanced fertilizer (10-10-10) every 3–4 weeks; avoid excess nitrogen which promotes leaf growth over knob development
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Temperature
Optimal at 60–70°F (16–21°C); bolts quickly above 75°F (24°C); harvest knobs at 2–3 inches diameter before toughening
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Humidity
Moderate humidity (50–70%); good air circulation prevents fungal issues
Toxicity
check_circleSafe for Catscheck_circleSafe for Dogscheck_circleSafe for Children
Non-toxic; safe for all members of the household
Common Diseases
Common Pests
Seasonal Care
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Resume regular watering and feeding as growth picks up.
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Peak growing season. Water and feed regularly.
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Reduce watering as growth slows. Stop heavy feeding.
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Minimal watering and feeding. Protect from frost if needed.