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An extreme close up of Azure Kohlrabi on a white background.
A close-up view of four large Azur Kohlrabi roots on a light blue background.
An overhead angle view of four large Azur Kohlrabi roots with leaves.
A pair of Azur Kohlrabi roots on a bed of kohlrabi leaves against a white background.
A man in a grey tunic holding a pair of large Azur Kohlrabi with leaves against a grey background.
A pair of Azur Kohlrabi tied with a jute rope on a white background.
An extreme close up of Azure Kohlrabi on a white background.
A close-up view of four large Azur Kohlrabi roots on a light blue background.
An overhead angle view of four large Azur Kohlrabi roots with leaves.
A pair of Azur Kohlrabi roots on a bed of kohlrabi leaves against a white background.
A man in a grey tunic holding a pair of large Azur Kohlrabi with leaves against a grey background.
A pair of Azur Kohlrabi tied with a jute rope on a white background.

Kohlrabi Seeds,
Azur

SKU: #KL108
Price
Regular price $4.50
Regular price $0.00 Sale price $4.50
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Min. 400 seeds

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Description

(Brassica oleracea var. gongylodes). A radiant standout in the garden! This ultra-violet, purple-skinned kohlrabi glows with bold color and offers crisp, juicy white flesh inside. The flat-round bulbs are at their tastiest when they reach 2–3 inches across and are renowned for their sweet, mild flavor, like a tender cabbage with the crunch of a water chestnut. Bred by the Hild Seed Company of Germany, this open-pollinated variety is fast growing, slow to bolt, and perfectly suited for cool-season harvests in spring and fall. Enjoy it raw in salads and slaws, or cook it up, roasted, stir fried, or simmered in stews. Even the tender leaves make a tasty, nutritious addition to dishes.

Plant Details

Botanical Name
Brassica oleracea var. gongylodes
Life Cycle
Biennial grown as annual in zones 3–10
Sun Requirement
Full sun
Days to Germinate
6–9
Days to Maturity
55–65
Planting Depth
¼ in.
Plant Spacing
6–8 in.
Ideal Temperature
45–80°F
Frost Hardy
Yes

Growing Guide

When to Grow

Sow Azur kohlrabi in early spring or late summer for cool-season harvests. It performs best in temperatures between 50–75°F and tolerates light frost, which enhances sweetness. Avoid growing during hot midsummer months to prevent woody or pithy bulbs. In warmer regions, fall crops often yield the highest quality. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

How to Sow and Plant

Direct-sow seeds 1/4 inch deep in fine, well-prepared soil or start indoors 4–6 weeks before the last frost. Space plants 6–8 inches apart in rows 12–18 inches apart. Keep soil moist until germination. For successive harvests, sow every 2–3 weeks during the cool growing season. Thin seedlings early to prevent crowding, which can lead to small, irregular bulbs.

How to Grow

Maintain even watering to prevent cracking and tough texture. Mulch to retain moisture and suppress weeds. Fertilize lightly with compost or balanced organic fertilizer after thinning. Harvest bulbs when they reach 2–3 inches in diameter for the best flavor and tenderness. Both bulbs and greens are edible—young leaves can be cooked like kale or collards for a nutritious side dish.

How to Save Seeds

  • Like its cabbage cousins, kohlrabi is a biennial and must be overwintered to produce seeds.
  • Kohlrabi is hardy down to 20 F. Those in areas with mild winters should have no issue keeping plants alive over winter.
  • In cooler regions, kohlrabi must be dug up and overwintered in sand in the root cellar. Kohlrabi stored this way should not be allowed to dry up and may need light watering while in storage.
  • Replant them after the last frost and allow them to go to seed.
  • Pick the seed pods after they are thoroughly dried and place them in a cloth bag. You will need to use a hammer or step on the stubborn pods to free the seeds.
  • Separate seeds from the chaff (leaf, pod, and stem trash) and store them in glass jars in the refrigerator.

FAQ

What makes Azur kohlrabi different from green varieties?

Azur kohlrabi features rich purple skin with crisp, white flesh. It’s slightly sweeter and more tender than many green types, making it ideal for raw salads or light cooking.

Can Azur kohlrabi tolerate frost?

Yes. This cool-weather crop tolerates light to moderate frosts, which can enhance sweetness. However, prolonged freezing may damage bulbs and reduce quality.

When should I harvest Azur kohlrabi for the best flavor?

Harvest bulbs when they reach 2–3 inches across. Larger bulbs may become woody and fibrous, while smaller ones remain tender and mildly sweet.

Browse our full range of kohlrabi seeds.

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