Heirloom / Open Pollinated Kohlrabi is a hardy biennial grown as an annual. Kohlrabi seeds can be started indoors 4-6 weeks before the last frost, then set out transplants when there are 6-8 true leaves and nighttime temps remain above 30°F. Direct sow Kohlrabi seeds 3-4 weeks before the last frost in spring, or in late summer for a winter harvest. Plant Kohlrabi in full sun, ¼ - ½" deep, 1" apart in rows 12-18" apart. Thin Kohlrabi plants to or set out transplants 3-8" apart. Germination of Kohlrabi seeds should occur in 5-17 days in soil 55-75°F. For extended harvest of Kohlrabi, stagger plantings throughout a month in spring or fall plantings. For tender sweet Kohlrabi, harvest when stem reaches 2" in diameter. For general use and storage crop harvest at 3-5" in diam. Fall Kohlrabi crops will remain hardy to 10°F.
We thank you for visiting our site, and hope you will be pleased with your purchase. We strive to bring you the highest quality heirloom and open-pollinated garden vegetable seeds, non-hybrid, non-genetically modified (non-GMO), and completely untreated with unhealthy chemicals. That is our pledge to you our valued customer, we will never knowingly buy or sell genetically modified (GMO) or hybrid seeds. We work very hard to ensure that you can have confidence knowing that the seeds your heirloom open-pollinated plants create will give you the same heirloom open-pollinated vegetable variety next season (when given proper isolation from cross-pollination of course!), and that they will be pure, healthy vegetable garden seeds! Happy Gardening!