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Up To 23lb

Bounty Harvest

≈55

Days to Harvest

Radish Round Black Spanish Seeds

Round Black Spanish Radish Seeds – Non-GMO Heirloom

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Round Black Spanish Radish Seeds – Non-GMO Heirloom

Round Black Spanish Radish Seeds – Non-GMO Heirloom

$4.99

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Round Black Spanish Radish Seeds – Non-GMO Heirloom
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Over 520 Seeds
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Over 90% germination rate
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Features

Life Cycle Annual
Planting Season Spring, Summer, Fall, Winter
Sunlight Full sun
Watering Needs Moderate
Hardiness Zone 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b
Suitable Space Indoors, Outdoors
Plant Characteristics Edible
Cultivar Type Heirloom
Seed Treatment Untreated
Certifications Non-GMO

Radish Round Black Spanish is a bold heirloom winter radish (Raphanus sativus) with rough, coal-black skin and dense, snowy-white flesh. These black Spanish radish seeds grow into hardy roots about 3–4 inches across with a robust, pungent, horseradish-like heat. Dating back centuries, this storage radish is a favorite for cool-season and winter gardens.

Who it's for

Suited to gardeners who want a storage radish for fall and winter, and to cooks who enjoy a strong, spicy root for cooking, grating, and fermenting.

How & when to plant

Sow in mid to late summer, about 8–10 weeks before your first fall frost, for a fall and winter harvest. Plant seeds 1/2 inch deep and 2 inches apart in rows 12 inches apart, thinning to 4 inches, in full sun. Black Spanish radishes grow well in USDA zones 2–10 and appreciate deep, loose soil for their large roots.

Harvest

Roots mature in about 55–60 days. Harvest when they reach 3–4 inches across, ideally after light frosts sweeten them; they store for months in a cool, humid cellar or the refrigerator.

Benefits & uses

Black Spanish radishes shine in cooked dishes, where their heat mellows into a rich, earthy flavor. Grate them raw as a horseradish substitute, roast or braise them, add them to soups and stews, or ferment them. The bold flavor stands up well to hearty winter cooking.

Growing guide: New to this variety? Read our full guide, How to Grow Round Black Spanish Radishes From Seed, for step by step sowing, spacing, and harvest tips.

FAQ

Round Black Spanish is an heirloom winter radish with rough black skin and firm, pungent white flesh. It is larger and much sharper than spring salad radishes, and it stores exceptionally well.
As a winter radish it is best sown in mid to late summer for a fall harvest. It needs a longer cool spell to size up than spring radishes do.
Allow about 55 to 65 days. Harvest the roots at 3 to 4 inches across before hard frost, once the weather has turned cool.
Because the roots grow large, sow 1/2 inch deep and thin seedlings to 4 to 6 inches apart in rows about 12 inches apart. Crowding leads to small, misshapen roots.
Yes, this is its specialty. The dense roots keep for months in a cool, humid root cellar or in the refrigerator, making it a favorite for winter cooking.
Each packet includes about 520 non-GMO heirloom seeds, enough for a substantial fall storage crop.
The rough outer skin is naturally black, while the inside is crisp and white; you can peel it before eating if you prefer a milder taste.
As a true winter radish, it keeps for several months in a cool, humid place, making it excellent for winter eating.