Watermelon Radish

Brassicaceae

NOT a standard spring radish — the app MUST treat differently. Daikon-type winter/storage radish. 50-65 DTM (2-3× longer than spring radishes). White-green skin with stunning pink-red interior. Best as FALL CROP — spring plantings frequently bolt before roots size up. Turnip-sized (3-4 inch diameter). Mild, slightly peppery flavor that MELLOWS with maturity (opposite of spring radishes). Can hold in ground after maturity in cool weather without becoming pithy.

At a Glance

Days to Maturity

50–65 days

Sun

6+ hours

Container

Yes

3+ gallon pot

Zone Planting Guide

Your USDA Zone:

Growing Guide

Germination

Germination Time 3–7 days

Optimal Temp 65°F

Seed Depth 0.5"

Watering

Needs Moderate

Soil

pH Range 6–7

Resilience

Heat: Low Cold: High Drought: Low

Nutrition

Feeding Intensity Light feeder

Sources

seed-catalog Johnny's Seeds seed-catalog High Mowing Organic Seeds

More Roots

Watermelon Radish Planting Dates by Zone

Planting dates for Watermelon Radish vary by USDA hardiness zone. Select your zone below for frost dates, start-indoors timing, and a full monthly planting calendar.

Zone 5A Zone 5B Zone 6A Zone 6B Zone 7A Zone 7B Zone 8A Zone 8B Zone 9A Zone 9B

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