Kohlrabi, also known as German turnip, is a cool-weather crop that is a member of the Brassicaceae family, along with other vegetables like broccoli, cauliflower, and kale. It has a unique, bulb-like shape and a sweet, mild flavor that is perfect for salads and slaws. In this article, we will discuss some tips for growing kohlrabi in your garden.
Start with the Right Soil
Kohlrabi thrives in well-draining soil that is rich in organic matter. A pH level of 6.0 to 7.5 is ideal for kohlrabi. Amend the soil with compost or well-rotted manure before planting.
Choose the Right Time to Plant
Kohlrabi is a cool-weather crop that thrives in temperatures between 60°F to 75°F. Plant kohlrabi in early spring or late summer for a fall harvest.
Plant the Seeds Correctly
Plant kohlrabi seeds 1/4 inch deep in rows that are 12-18 inches apart. Space the seeds 2-3 inches apart. Keep the soil moist until the seeds germinate, which typically takes 4-7 days.
Thin the Seedlings
Once the seedlings have grown to about 3-4 inches tall, thin them to a spacing of 4-6 inches apart. This will give the kohlrabi bulbs room to grow.
Keep the Soil Moist
Kohlrabi needs consistent moisture to grow well. Water the plants regularly, and make sure the soil stays evenly moist. Mulching can help retain moisture in the soil.
Kohlrabi is a heavy feeder and needs regular fertilization to grow. Apply a balanced fertilizer once a month to provide the plants with the nutrients they need.
Watch for Pests and Diseases
Kohlrabi can be susceptible to pests and diseases such as aphids, cabbage worms, and clubroot. Monitor your plants regularly and treat any issues promptly.
Harvest at the Right Time
Kohlrabi bulbs should be harvested when they are 2-3 inches in diameter. Harvest them by cutting the stem just above the soil level. If you wait too long to harvest, the bulbs can become woody and bitter.