Organic Radish 'Black Spanish Round' – 100 Seeds

Grow Organic Black Spanish Round Radish, a traditional cool-season radish prized for its striking dark black skin and crisp, white interior. The round roots have a firm texture and a bold, peppery flavor that becomes more pronounced as they mature. This hardy radish is excellent for fresh eating, salads, slicing, pickling, and cooking.

Key Details

• Botanical Name: Raphanus sativus
• Common Name: Organic Black Spanish Round Radish
• Type: Cool-Season Root Vegetable
• Days to Maturity: 50–70 days
• USDA Growing Zones: 2–11
• Growth Habit: Upright leafy tops with round underground roots
• Root Color: Black/dark charcoal exterior with white interior
• Root Shape: Round
• Root Size: Approximately 3–4 inches across
• Flavor: Crisp, firm, and distinctly peppery
• Frost Tolerance: Frost tolerant; can handle light frost and cool temperatures
• Drought Tolerance: Moderately drought tolerant once established, but consistent moisture produces better-quality roots

Features

• Organic Black Spanish Round Radish
• Dramatic black skin with crisp white flesh
• Round roots with a strong, peppery flavor
• Excellent for salads, slicing, pickling, and cooking
• Well suited to fall and spring gardens
• Cool-weather tolerant and able to withstand light frost
• Easy to grow directly from seed

Growing Information

• Light: Full sun to partial shade
• Soil: Loose, fertile, fluffy, well-draining soil free of rocks and compacted areas
• Soil pH: 6.0–7.0
• Seed Depth: 1/2 inch
• Plant Spacing: 3–4 inches
• Row Spacing: 12–18 inches
• Germination: Approximately 5–10 days
• Optimal Germination Temperature: 55–70°F
• Water: Keep soil evenly moist for uniform root development

Direct sow the seeds into the garden as soon as the soil can be worked in spring, or sow in late summer to early fall for a cool-season crop. Radishes grow best in cool weather and can develop a stronger, hotter flavor when exposed to prolonged heat or allowed to become oversized.

Sow seeds in loose soil and thin seedlings early to give each root enough room to develop. Avoid compacted soil, as hard or rocky conditions can cause misshapen roots. For a continuous harvest, make successive plantings every 1–2 weeks during suitable growing weather.

Plant Care & Harvest

Keep the soil consistently moist without allowing it to remain soggy. Although established plants can tolerate short periods of dry weather, adequate and consistent moisture helps produce crisp, well-formed roots.

Black Spanish Round Radishes can be harvested when the roots reach approximately 3–4 inches in diameter. For a milder flavor, harvest while roots are young. Leaving them in the ground longer produces a larger, firmer root with a stronger, more pungent flavor.

Note: Black Spanish Round Radish is a cool-season crop. It tolerates light frost and performs best when grown during the cooler portions of the growing season. Prolonged hot weather can cause roots to become tougher and more strongly flavored.