Learning Download: How to Grow Kohlrabi
Kohlrabi is a member of the cabbage family and is one of the hardiest vegetables as it tolerates colder weather better than other garden crops. This crop provides nutrients like Vitamin C and fiber when eaten.
Before Planting: Kohlrabi prefers mild weather, fertile, well-irrigated soil will help promote rapid growth. Grow throughout the season in the North, and during fall and winter in the South.
Planting: Sow 1-2 seeds per cell, 1/2″ deep, when ready transplant outdoors at 6-8″ between plant. Harvest when roots are about 3″ diameter; 8″ diameter for storage varieties.
Watering: Water often to keep soil moist.
Fertilizer: Upon planting, work in a general-purpose fertilizer to quicken growth. You also can amend the soil with composted manure upon planting. Once the plant is established, fertilize every three to four weeks with a general-purpose fertilizer.
Days to Maturity: Kohlrabi is ready to harvest when its bulb is 1 to 3 inches in diameter, or about the size of a tennis ball. (See each variety for days to maturity)
Harvesting: Do not pick the vegetable in warm weather, as the root becomes woody. Kohlrabi leaves also are edible. Boil them or use them in salads.
Tips: As it is a member of the cabbage family, kohlrabi can be a victim to cabbage moths and other pests. Protect the plants with floating row covers and prevent disease by using a four-year crop rotation.
AVG. Direct Seeding Rate: 250 seeds/16′, 1,000 seeds/66′, 436M/acre at 15 seeds/ft with rows 18″ apart.