Simple Guide to Growing Kohlrabi Greens at Home for Beginners

Kohlrabi, an often-overlooked member of the Brassica family, is not just prized for its bulbous stem but also for its nutritious and flavorful greens. Growing kohlrabi greens at home can be a rewarding experience, whether you are an urban gardener with limited space or someone with a backyard plot. In this guide, we’ll walk through the essentials of growing kohlrabi greens, from choosing the right variety to caring for your plants and harvesting.

What is Kohlrabi?

Kohlrabi (Brassica oleracea var. gongylodes) is a biennial vegetable that is commonly grown as an annual. Its distinctive appearance—round, swollen stem that grows above ground—makes it look like a cross between a turnip and a cabbage. However, it is the leaves, or greens, that are just as edible and nutritious as the bulb itself. Packed with vitamins A, C, and K, as well as minerals like calcium and iron, kohlrabi greens are a great addition to salads, soups, and stir-fries.

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Choosing the Right Variety

When it comes to growing kohlrabi, several varieties are available, and the choice depends on your preferences. Here are a few popular types:

White Star: This variety has a mild flavor and is ideal for beginners.

Purple Vienna: Known for its vibrant purple stems, this variety is not only beautiful but also delicious.

Kolibri: This early-maturing variety is perfect for those looking to enjoy kohlrabi greens quickly.

Step-by-Step Guide to Growing Kohlrabi Greens

Step 1: Timing and Location

When to Plant: Kohlrabi can be grown in spring or fall. For a spring harvest, sow seeds indoors 6-8 weeks before the last frost date. For fall planting, start seeds outdoors in late summer.

Choosing a Location: Kohlrabi prefers full sun but can tolerate partial shade. Ensure the area has well-draining soil to prevent root rot.

Step 2: Soil Preparation

Kohlrabi thrives in fertile soil rich in organic matter. Follow these steps to prepare your soil:

Test the Soil: Use a soil test kit to determine pH and nutrient levels. Kohlrabi prefers a pH between 6.0 and 7.0.

Amend the Soil: Enrich your soil with well-rotted compost or aged manure, which will boost fertility.

Tilling: Loosen the soil to a depth of at least 12 inches to improve drainage and root development.

Step 3: Sowing Seeds

Direct Sowing: Plant seeds about 1/2 inch deep, spacing them 12 inches apart in rows spaced 24 inches apart.

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Transplanting: If you started seeds indoors, transplant them outdoors when they have two sets of true leaves.

Step 4: Watering

Kohlrabi requires consistent moisture, especially during establishment. Water your plants regularly to keep the soil evenly moist, avoiding waterlogging.

Step 5: Fertilizing

To nourish your kohlrabi greens, apply a balanced, all-purpose fertilizer about a month after planting. Follow package instructions for application rates, but a general rule is to use 1-2 tablespoons per foot of row.

Step 6: Weed and Pest Control

Weeding: Keep the area around your kohlrabi free from weeds, which can compete for nutrients and water. Mulching can help suppress weeds.

Pest Management: Common pests include aphids, cabbage worms, and flea beetles. Inspect your plants regularly and consider using neem oil or insecticidal soap for treatment.

Step 7: Harvesting

Kohlrabi greens can be harvested as soon as they are large enough to eat, typically when they are around 6-8 inches tall. Use scissors or garden shears to snip the leaves, allowing the plant to continue growing new foliage.

For the bulb, wait until it reaches about 2-3 inches in diameter before harvesting. Cut the bulb at the base, leaving the greens intact.

Tips for Growing Success

Rotation: Rotate crops yearly to prevent disease buildup.

Companion Planting: Kohlrabi grows well alongside legumes and herbs but avoid planting near other Brassicas to prevent competition.

Harvest in Stages: Continuously harvest the outer leaves to enjoy fresh greens regularly while allowing the central leaves to keep growing.

How to Use Kohlrabi Greens

Once harvested, kohlrabi greens can be used in various dishes. Here are some ideas:

Salads: Toss fresh leaves into salads for a peppery flavor.

Stir-fries: Use chopped greens in stir-fries, adding them near the end of cooking to retain crispness.

Soups: Chop and add to soups for added nutrition and flavor.

Sautéed: Sauté with garlic and olive oil for a simple side dish.

FAQs

1. Can I grow kohlrabi in containers?

Yes, kohlrabi can be grown in containers as long as they are deep enough to accommodate their root system. Choose a container that is at least 12 inches deep and wide.

2. Are kohlrabi greens edible?

Absolutely! Kohlrabi greens are not only edible but also highly nutritious, offering a flavorful and delightful addition to many dishes.

3. How often should I water kohlrabi?

Kohlrabi needs consistent moisture, so aim to water them at least once a week, more often in hot, dry conditions. Ensure the soil remains moist but not soggy.

4. What are the signs of pests on kohlrabi plants?

Look for small holes in the leaves, sticky residue, or visible insects such as aphids or worms. Regular inspection will help catch issues early on.

5. How do I store harvested kohlrabi greens?

Store kohlrabi greens in a plastic bag in the refrigerator. They are best consumed within a week, as they tend to wilt quickly.

6. Can I save seeds from my kohlrabi plants?

Yes, since kohlrabi is a biennial plant, you can let some of your plants flower and produce seeds. Collect seeds once they turn brown and dry.

Conclusion

Growing kohlrabi greens at home is a simple yet rewarding endeavor. With just a few basic steps, you can enjoy fresh, nutritious greens that enhance the flavor of your meals. Whether you’re a beginner or an experienced gardener, kohlrabi greens offer a unique addition to your garden. By following this guide, you’ll be well on your way to cultivating a healthy and delicious kohlrabi harvest. Happy gardening!