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Kohlrabi

Botanical Name
Brassica oleracea var. gongylodes
Hardiness
Annual
Height
12 to 18 inches
Width
12 to 18 inches
Light
Full sun
Soil
Moist, well-drained
Planting & Care
  • Kohlrabi germinates best in temperatures 45°F to 85°F
  • Direct sow outdoors in early spring at least 4 weeks before last frost date and continually every 2 to 3 weeks for an ongoing spring and summer harvest. Plant seeds 1/2 inch deep and 1 inch apart in rows 12 inches apart - thin seedlings to 6 inches
  • The thinned seedlings can be moved to open spaces in the garden or eaten
  • For an earlier spring harvest, start seeds indoors and transplanted as soon as the ground can be worked
  • For a fall harvest, begin sowing seeds about a month before the first frost
  • Use floating row covers to protect plants from insects and plunging temperatures
  • Eat leaves as you would kale
Problems
Black rot, black leg, cutworm, flea beetles, cabbage aphids, cabbage root maggots, cabbage loopers
Varieties
  • Purple Vienna - purple variety with white flesh, turnip-cabbage flavor, harvest bulbs when tennis ball size
  • Kolibri - purple variety with white interior, resistance to black rot
  • Grand Duke - white flesh, godd disease resistance, maturity is 45-60 days, All-America Selections winner
  • Konan - sweet flavor, excellent texture and uniform upright foliage, AAS winner

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