Seed Depth: ½ inch

Seed Spacing: 1 inch

Row Spacing: 12 inches

Sunlight: Full sun to partial shade

Days to Sprout: 4–7 days

Days to Maturity: 25–30 days

Growth Habit: Upright greens with round, deep purple roots

Sunlight: Full sun for best color and flavor; tolerates light shade in warmer climates.

Soil Type: Loose, well-draining soil rich in organic matter; avoid compacted or rocky soil to prevent misshapen roots.

When to Plant: Direct sow in early spring or late summer for fall harvest. Plant successively every 1–2 weeks for a continuous supply.

Direct Sowing: Sow seeds ½ inch deep and 1 inch apart in rows spaced 12 inches apart. Thin seedlings to proper spacing once established.

Indoor Sowing: Not recommended, as radishes grow best when directly sown in the garden.

Succession Planting: For extended harvests, sow new seeds every 10–14 days until temperatures consistently exceed 75°F.

Watering: Keep soil evenly moist to ensure tender, crisp roots; avoid letting soil dry out, which can cause splitting or pithy texture.

Weeding: Gently hand-weed around young plants to prevent disturbing shallow roots.

Fertilizing: Radishes typically don’t need heavy feeding; if soil is poor, apply a balanced fertilizer before planting. Avoid excess nitrogen, which encourages leafy tops over root development.

Mulching: Apply a light mulch to retain moisture, regulate temperature, and suppress weeds.

Pest Management: Watch for flea beetles and root maggots; use row covers early in the season to protect seedlings.

When to Harvest: Harvest when roots are about 1 inch in diameter, usually 25–30 days after sowing. Younger radishes will be crisper and milder in flavor.

How to Harvest: Gently pull plants from the soil by grasping the base of the greens. Loosen compacted soil with a garden fork if needed to avoid breaking roots.

Storing Seeds: Keep seeds in an airtight container in a cool, dark location for up to 5 years.

Allow to Flower: Let plants grow until they produce flowers naturally.

Pod Formation: Leave flowers to develop seed pods on the plant.

Drying Pods: Wait until pods turn brown and dry before harvesting.

Harvesting Seeds: Remove pods, shell seeds, and discard debris.

Tip: Once plants start flowering, the roots will become woody and lose flavor. Plant a few extra radishes if you plan to grow some for seed.

Storage: Store seeds in an airtight container in a cool, dark, and dry place; viable for up to 5 years.