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Kohlrabi

Use our zone-based planting guide to know when to plant kohlrabi.

Plant name Zone Start seeds indoors Start seeds outdoors Plant seedlings/transplants outdoors Plant spacing # plants per person
Kohlrabi 3a Not recommended On/around April 15; On/around July 15 April 15-May 1; July 15-Aug.1 12-18 inches 6-10
Kohlrabi 3b Not recommended On/around April 15; On/around July 15 April 15-May 1; July 15-Aug.1 12-18 inches 6-10
Kohlrabi 4a Not recommended On/around April 15; On/around July 15 April 15-May 1; July 15-Aug.1 12-18 inches 6-10
Kohlrabi 4b Not recommended On/around April 15; On/around July 15 April 15-May 1; July 15-Aug.1 12-18 inches 6-10
Kohlrabi 5a Not recommended On/around March 15; On/around August 15 March 15-April 1; Aug. 15-30 12-18 inches 6-10
Kohlrabi 5b Not recommended On/around March 15; On/around August 15 March 15-April 1; Aug. 15-30 12-18 inches 6-10
Kohlrabi 6a Not recommended On/around March 15; On/around August 15 March 15-April 1; Aug. 15-30 12-18 inches 6-10
Kohlrabi 6b Not recommended On/around March 15; On/around August 15 March 15-April 1; Aug. 15-30 12-18 inches 6-10
Kohlrabi 7a Not recommended On/around March 15; On/around August 15 March 15-April 1; Aug. 15-30 12-18 inches 6-10
Kohlrabi 7b Not recommended On/around March 15; On/around August 15 March 15-April 1; Aug. 15-30 12-18 inches 6-10
Kohlrabi 8a Not recommended On/around Feb. 15; On/around Sept. 15 Feb. 15-March 1; Sept. 15-30 12-18 inches 6-10
Kohlrabi 8b Not recommended On/around Feb. 15; On/around Sept. 15 Feb. 15-March 1; Sept. 15-30 12-18 inches 6-10
Kohlrabi 9a Not recommended September-February Feb. 15-March 1; Sept. 15-30 12-18 inches 6-10
Kohlrabi 9b Not recommended September-February Feb. 15-March 1; Sept. 15-30 12-18 inches 6-10
Kohlrabi 10a Not recommended October-February October-February 12-18 inches 6-10
Kohlrabi 10b Not recommended October-February October-February 12-18 inches 6-10
Kohlrabi 11a Not recommended November-February November-February 12-18 inches 6-10
Kohlrabi 11b Not recommended November-February November-February 12-18 inches 6-10

* Kohlrabi is a cool-season vegetable. Direct sow approximately 4 weeks before the last frost, or transplant seedlings approximately 2-4 weeks before the last frost. Can be replanted for a fall harvest.