Food Gardening Network

Growing Good Food at Home

Watermelon Radish

Watermelon radish

Watermelon radish

Watermelon radish

Watermelon radish

Watermelon radish is a ball-shaped, gently sweet, and less peppery winter radish that features white skin and a bright pink interior reminiscent of a watermelon.

Days to maturity

  • 60 days

Sun Exposure

  • Full sun in spring/fall and partial/full shade in summer

Soil pH

  • 5.8 to 6.8

Hardiness Zones

  • Zones 2 to 9 (shade cloth may be needed in higher zones)


  • Plants: 1 inch apart
  • Rows: 6 to 8 inches apart


  • 1 inch per week


  • Plant in mid-summer to harvest in the fall, they will sweeten as temperatures drop
  • Harvest when 2 to 4 inches in diameter
  • Don’t add nitrogen to soil or you’ll end up with big tops and small bulbs
  • Germinate in soil that is 65 to 85 degrees F

Have you ever grown Watermelon radishes? Please tell us about your experiences.


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