Black Spanish Round Radish Seeds for Growing Black-Skinned Roots with White Flesh and a Bold Peppery Flavor

Black Spanish Round radish seeds grow distinctive roots with black skin, white flesh and a bold, earthy bite. This heirloom, open-pollinated variety brings a sharper flavor than many radishes, making it a distinctive choice for a vegetable garden.

Grow this annual radish in a sunny field, greenhouse or raised bed with well-draining soil. It prefers cooler conditions and typically reaches maturity in 50–70 days. Direct sowing and timely thinning give the developing roots room to grow.

Features

• Black skin contrasts with white flesh for a distinctive harvest.
• Zippy to sharp flavor with earthy, robust notes.
• Non-GMO heirloom seeds from an open-pollinated annual variety.
• Suitable for fields, greenhouses and raised beds.
• Direct sow in full sun; thin seedlings to 2–4 inches apart.

Specifications

• Variety: Black Spanish Round
• Botanical name: Raphanus sativus
• Days to maturity: 50–70
• Days to germination: 7–10
• Sowing depth: 0.5 inches
• Initial seed spacing: 1–2 inches
• Spacing after thinning: 2–4 inches
• Row spacing: 12–18 inches
• Light: Full sun
• Preferred temperature: 50–70°F
• Soil: Well-draining; slightly acidic to neutral pH 6.0–7.0
• Package sizes: 4 g Packet; 1 oz; 4 oz; 1 lb; 5 lb; 25 lb

Frequently Asked Questions

What do Black Spanish Round radishes look and taste like?

Black Spanish Round radishes have black skin and white flesh, with a zippy to sharp flavor that is earthy and robust. Their flavor is hotter than that of many other radishes.

Should I direct sow these radish seeds or start them indoors?

Direct sow Black Spanish Round radish seeds 0.5 inches deep and 1–2 inches apart, with rows 12–18 inches apart. When seedlings are about 1 inch tall, thin them to 2–4 inches apart to give the roots room to develop.

When should I plant and harvest Black Spanish Round radishes?

Plant Black Spanish Round radishes in spring or from late summer to early fall. They typically mature in 50–70 days; check for firm roots about 3–4 inches in length and diameter before harvesting.

Can I grow these radishes in a raised bed?

Yes, Black Spanish Round radishes are suitable for raised beds as well as fields and greenhouses. Choose full sun and well-draining soil with a pH of 6.0–7.0; the variety prefers cooler conditions of 50–70°F.