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Growing Kohlrabi

Growing Kohlrabi

Kolibri Hybrid Kohlrabi

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A cool season cruciferous vegetable with an edible, swollen stem produced above ground. The stem is peeled and eaten raw or cooked and has an excellent mild and sweet flavor similar to Cabbage combined with Turnips. Most varieties are harvested when the stem reaches 2 to 3 inches in diameter. Kossak Hybrid Kohlrabi (02499) remains tender even when stems reach 8 to 10 inches across. Space plants 4 inches apart with 12 inches between rows. Can be sown or transplanted every 3 weeks starting up to 4 weeks before the last spring frost for a continued harvest. Plant seed ¼ to ½ inch deep. An ounce of seed plants 300 feet, and there are about 8,000 seeds per ounce.

Maintenance

For full sun in moist, well-drained soil. Appreciates mulching to keep the soil cool, moist, and weed free.

Fertilizer Recommendations

Use full rates of Algoflash All-Purpose Liquid Fertilizer 6-6-6 (51085), Nature's Source Plant Food Concentrate 10-4-3 (51012), or Neptune Fish & Seaweed Fertilizer 2-3-1 (51221).

Alternative Products

Other cole crops include Broccoli, Cabbage, and Kale.

Complimentary Products

Kohlrabi is a heavy feeder that benefits from regular fertilization. Use 70% Neem Oil (50340) or Safer Insecticidal Soap (50424) to control insects.

Product Recommendations

Thuricide (55889) is a natural control for caterpillars pests.

Kohlrabi Facts

Generally free of serious problems. Aphids, caterpillars, flea beetles, harlequin bugs, slugs, black rot, clubroot, downy mildew, and yellows are occasional issues. Initially popularized in American gardens during World War II Victory Gardening efforts, as it is both nutritious and easy-to-grow.  

Growing Tips