🌱 How to Grow Noolkol (Kohlrabi) from Seeds
Also known as:

• Hindi: गांठ गोभी (Gaanth Gobhi)

• Tamil: நூல்கோல் (Noolkol)

• Telugu: నూల్‌ కోల్ (Nool Kol)

• Malayalam: നോൽകോൾ (Noolkol)

• Kannada: ನೂಲ್ಕೋಲ್ (Noolkol)

• English: Kohlrabi / German Turnip

• Botanical Name: Brassica oleracea (Gongylodes Group)

1. 🗓️ Choose the Right Season

• Cool-season vegetable

• Best time to sow: September to February (avoid peak summer)

• Ideal temperature: 15°C to 25°C

2. 🌱 Prepare the Soil

• Soil Type: Loose, fertile, well-draining loamy soil

• pH: Neutral to slightly acidic (6.0–7.0)

• Add compost, cow dung, or vermicompost before sowing

3. 🌾 Sowing the Seeds

• Sow seeds directly in beds or seed trays

• Depth: 0.5 inch (1.2 cm) deep

• Spacing:

  • In rows: 8–10 inches between plants

  • 12–15 inches between rows

• Thin seedlings once true leaves appear

4. 💧 Watering

• Keep soil evenly moist, especially during bulb formation

• Avoid waterlogging to prevent root rot

• Water early in the morning or late evening

5. 🌿 Germination

• Seeds germinate in 5–10 days

• Maintain soil temperature around 18°C to 24°C

• Keep soil moist until seedlings establish

6. ☀️ Sunlight & Temperature

• Requires full sun, minimum 5–6 hours daily

• Performs best in cool weather

• Protect from extreme heat to prevent bolting

7. 🌼 Fertilization

• Use compost or balanced organic fertilizer every 2–3 weeks

• Avoid excessive nitrogen — it promotes leaves over bulb

• Supplement with phosphorus-rich feed during bulb development

8. 🛡️ Pest & Disease Control

• Common pests: aphids, cabbage worms, flea beetles

• Diseases: downy mildew, root rot, black rot

• Use neem oil spray and maintain spacing for airflow

• Remove infected leaves and rotate crops annually

9. 🥬 Harvesting

• Harvest in 45–60 days depending on variety

• Harvest when the bulb is 2–3 inches in diameter, still tender

• Cut just above the soil level with a knife

10. 🌱 Regrow Tip

• Allow a few plants to mature and flower for seed saving

• Collect dry seed pods, clean, and store in a cool, dry place

🌿 Health Benefits of Noolkol (Kohlrabi)

• Rich in vitamin C – supports immunity

• Good source of fiber – aids digestion

• Low in calories – great for weight loss

• Contains potassium, folate, and antioxidants