Planting Information: Kohlrabi prefers cool weather and loves the winters of the south. Sow seeds 1” apart, 1/2- 1/2” deep. Thin to 4” between plants. Fertile, well-irrigated soil promotes rapid growth, which makes for a sweeter flavored crop. Harvest when roots are about 2-3” diameter, if they get too large they will be woody and tough.