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Round Black Spanish Radish Seeds

Round Black Spanish Radish Seeds

SKU: #0095

Winter radishes are a must for radish lovers. 'Round Black Spanish', also known as 'Noir Gros Rond d'Hiver', grown in the U.S. since the 1800s, is an extra large, winter radish that adds spiciness to raw or cooked dishes; spiciness declines when cooked. Winter radishes require a shortening day length and cool temperatures to mature the edible root; sow after mid-summer and into early fall. They can be stored for long periods.

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7.0 g

(~700 seeds)

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  • Variety Info
  • Sowing Info
  • Growing Info
  • Learn More

Variety Info

Days to Maturity: 60–70 days

Family: Brassicaceae

Type: Winter radish (Learn more)

Native: Unknown

Hardiness: Frost-tolerant annual

Exposure: Full sun to part shade

Plant Dimensions: 3"-4" diameter round roots

Variety Info: 3"–4" diameter, black skin with white interior. 'Round Black Spanish' is a medium-spicy radish.

Attributes: Frost Tolerant, Good for Containers

Sowing Info

When to Sow Outside: RECOMMENDED. 8 to 10 weeks before your average first fall frost date. Optimal soil temperature is 65°–85°F. Successive Sowings: Every 10 days for about 3 weeks. In Mild Climates, successive sowings can be continued until temperatures are too cold (below 60°F) for germination.

When to Start Inside: Not recommended.

Days to Emerge: 5–10 days

Seed Depth: ½"

Seed Spacing: A group of 2 seeds every 5"

Row Spacing: 12"

Thinning: When 1" tall, thin to 1 every 5"

Growing Info

Harvesting: Harvest at any size— tiny for hors d'oeuvres or large for cooking, but before the ground freezes (unless well mulched).