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How to Grow Kohlrabi

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Ready to grow Kohlrabi?

Order seeds from trusted suppliers.

🛒 Amazon 🌿 True Leaf

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🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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Find Your Kohlrabi Planting Dates

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🌿 Plant Overview

Scientific Name Brassica oleracea var. gongylodes
Category vegetable
Type Bulb
Days to Maturity 55 days
Starting Method Start Indoors

☀️ Growing Requirements

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Sun

Full Sun to Partial Shade

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Water

Regular (consistent moisture prevents cracking)

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Spacing

6" apart

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Depth

0.5" deep

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Height

12-18"

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Germination

4-7 days

Ready to Grow Kohlrabi?

Find quality seeds from trusted suppliers.

🛒 Buy on Amazon 🌿 True Leaf Market

* Affiliate links — we may earn a small commission at no extra cost to you.

🤝 Good Companions

BeetOnionCucumberHerb

⚠️ Avoid Planting Near

TomatoPepperStrawberry

Kohlrabi Planting Calendar by Zone

Zone 1a Zone 1b Zone 2a Zone 2b Zone 3a Zone 3b Zone 4a Zone 4b Zone 5a Zone 5b Zone 6a Zone 6b Zone 7a Zone 7b Zone 8a Zone 8b Zone 9a Zone 9b Zone 10a Zone 10b Zone 11a Zone 11b Zone 12a Zone 12b Zone 13a

Kohlrabi Planting Calendar by State

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Frequently Asked Questions

When should I plant Kohlrabi? +

Start Kohlrabi seeds indoors 4 weeks before your last frost date, then transplant outdoors -2 weeks after the last frost. Use the search on this page to find exact dates for your ZIP code or city.

How long does Kohlrabi take to grow? +

Kohlrabi typically matures in about 55 days from planting. Exact timing varies by variety, soil conditions, and local climate.

Should I start Kohlrabi indoors or direct sow? +

Kohlrabi should be started indoors 4 weeks before the last frost date. This gives seedlings time to establish before being transplanted outside after frost danger has passed.

How much sun does Kohlrabi need? +

Kohlrabi requires full sun to partial shade to thrive.

How far apart should I plant Kohlrabi? +

Space Kohlrabi plants 6 inches apart to allow adequate airflow and root development.

How much water does Kohlrabi need? +

Kohlrabi has regular (consistent moisture prevents cracking) water needs. Consistent moisture is important especially during germination and early growth.

About Kohlrabi

Crisp, mild-flavored brassica with swollen stem that tastes like a cross between broccoli and turnip. Harvest when bulb is 2-3 inches for best texture.

Expect your Kohlrabi to be ready for harvest in approximately 55 days from planting.

Use the search above or browse by zone or state to find the perfect planting dates for your location.