Radish Seeds – Black

Grow bold, crisp, and distinctive roots with Black Radish Seeds (Heirloom), a traditional variety known for its dark, rough exterior and firm white interior. These cool-season radishes develop large, round to cylindrical roots with a robust texture and classic mild-to-peppery flavor, making them a standout addition to home vegetable gardens.

This non-GMO heirloom type offers high germination, dependable growth, and steady yields in loose, well-drained soil. Black radishes perform well in raised beds, garden rows, and containers—ideal for gardeners seeking a hardy and visually striking root crop.

Features

• Produces deep black roots with crisp white interiors

• Heirloom, non-GMO seeds with high germination

• Cool-season, fast-growing root crop

• Excellent for raised beds, containers, and vegetable gardens

• Distinctive appearance with firm, smooth texture

Specifications

• Common Name: Black Radish

• Botanical Name: Raphanus sativus

• Variety: Black (Heirloom)

• Color: Black exterior with white interior

• Plant Type: Cool-season annual

• Planting Season: Early Spring or Fall

  • Zones 3–4: Direct sow April–June or August

  • Zones 5–6: Direct sow March–June or September

  • Zones 7–8: Direct sow February–April or October

  • Zones 9–10: Direct sow January–March or October–November

• Growing Zones: Suitable for Zones 3–10

• Sunlight: Full sun

• Soil Requirement: Loose, well-drained soil

• Germination Time: 5–10 days

• Days to Maturity: 50–70 days

• Root Size: Medium to large round or cylindrical roots

• Growth Habit: Fast-growing root crop