Cultivating and Nurturing Kohlrabi: A Comprehensive Guide
Kohlrabi, a decorative vegetable belonging to the Brassica family, is an uncommon yet delightful addition to any home garden. With a mild flavor reminiscent of broccoli or turnip, kohlrabi offers a unique culinary experience.
To grow and care for kohlrabi, follow these simple steps:
Planting & Spacing
Sow kohlrabi seeds about ¼ inch deep, either directly outdoors 4 to 6 weeks before the last frost or start them indoors and transplant. Space seeds roughly 6 inches apart in rows 12 inches apart, providing ample room for bulb development.
Soil
Use well-drained, loose soil rich in organic matter. Loosen soil up to 12 inches deep and enrich with compost before planting to supply nutrients and ensure good drainage.
Watering
Maintain consistent moisture, especially during germination and bulb formation. Use drip irrigation or hand-water in the early morning to avoid leaf wetness that causes fungal diseases. Avoid overwatering to prevent root rot; check soil moisture by probing two inches deep and water when dry.
Mulching
Apply 2-3 inches of organic mulch around plants to retain moisture, suppress weeds, and moderate soil temperature. Keep mulch an inch away from stems to prevent rot.
Fertilizing
Initially rely on compost-enriched soil, then provide balanced fertilizer (e.g., 5-5-5) as needed. Foliar feeding with seaweed extract can help during peak growth.
Pests & Diseases
Watch for aphids and caterpillars; natural remedies or manual removal can control infestations. Proper spacing and airflow help reduce disease risk. Use mulch to inhibit weeds and maintain plant vigor.
Harvesting
Harvest when bulbs reach 2-3 inches in diameter before they become tough or woody, typically about 55-65 days after planting depending on variety. Cut the bulb base just above ground level to allow potential regrowth.
Protection and prevention are the best courses of action against kohlrabi pests and diseases, including using fine mesh netting. Green kohlrabi varieties are suitable for spring and early summer sowings, while purple varieties are suitable for summer sowings.
Availability and Storage
Young plants or plug plants may be available to buy in late spring. Kohlrabi's stems are ball or globe-shaped and its leaves are edible. Kohlrabi should be grown in a sunny site in light, fertile soil, kept moist and weed-free.
Kohlrabi works well with Indian spices and is best eaten fresh but can be stored for a short time in the fridge in a perforated bag. Kohlrabi harvesting can continue until December, or earlier if leaves start to yellow.
Nutritional Benefits
Kohlrabi is a good source of dietary fiber, calcium, vitamin C, and iron. It is filling and high in protein, making it a great alternative to meat.
In conclusion, with proper care in soil preparation, watering, pest management, and harvesting, you can enjoy healthy, tender kohlrabi bulbs suitable for home gardening. Specialist seed suppliers offer a wide range of kohlrabi varieties, making it easy to find the perfect one for your garden. Crocus, Suttons, Thompson & Morgan, and Rocket Gardens are sources for kohlrabi seeds and plants.
To create a dynamic home-and-garden lifestyle, consider incorporating kohlrabi into your garden. Known for its decorative ball-shaped stems and edible leaves, kohlrabi is an easy-to-grow vegetable suitable for any home gardener.
