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Growing Kohlrabi, A Simple
Versatile Vegetable


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Growing Kohlrabi

Kohlrabi is a fast growing vegetable that will grow equally well in hot or cold weather. It looks like a cross between a cabbage and a turnip with a taste similar to a broccoli stem. The edible portion is a bulb, or enlarged stem which grows just above ground level, the leaves are also edible.


Quick Reference Guide


Veggie Garden Dairy
Vegetable Kohlrabi
Also Known As German turnip
Botanical Family - Brassicaceae, Species - Brassica oleracea , Cultivar group - Gongylodes Group
Plant Type Cool season - annual - stem vegetable
Frost Tolerance Hardy
Planting Position Sunny position but welcomes shade in the hottest part of the season - requiring a minimum of 3-4 hours of direct sunlight daily.
Seed Viability 4 years
Germination 5-8 days at 40-80 F (4-27 C)
Growing Temp 50-70 F (10-21 C)
Seed to Transplant 4-6 weeks
Planting Method Direct sow or Seedling transplants
When to Plant Spring and again in mid-summer for fall-winter harvest
Time to Plant As soon as 2 - 4 weeks before the average date of the last 32 F (0 C) freeze in the spring in your area but not before soil temperatures are consistently 40 F (4 C) and above.
Seed Sowing Direct sowing kohlrabi seeds 1/2 inch (12 mm) deep 1 inch (25 mm) apart in rows 12-18 inches (30-45 cm) apart
Plant Spacing Transplant or thin seedlings to 4-6 inches (10-15 cm) apart in rows 12-18 inches (30-45 cm) apart
Soil Conditions Well drained - High organic matter - Medium fertility
Fertilizer Medium fertilizer needs, 3-4 quarts per 100 sq feet (3.3-4.4 liters per 9.3 square meters) preplanting of all purpose organic fertilizer 5-5-5, same rate for each side dressing.
When to Fertilize 2 weeks before sowing or transplanting - when transplanting use liquid starter fertilizer - side-dress every 3-4 weeks
Days to Harvest 60-80 days - depending on conditions and variety
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