Watermelon Radish Seeds (Organic)

Watermelon Radish (Raphanus sativus) is a uniquely colored heirloom daikon-type radish that grows to about 4 inches, with green shoulders fading to white outside and brilliant bright-pink inner flesh. A hardy annual, it is an extremely mild radish that is peppery-sweet inside and a touch hotter near the white outer ring.

At a glance

• Variety: Watermelon (Shinrimei daikon type), heirloom, organic, non-GMO
• Botanical name: Raphanus sativus
• Days to maturity: 55 days
• Sun: Full sun
• Spacing after thinning: 3 inches
• Planting depth: 1/2 inch
• Seeds per pack: About 200
• Size at maturity: Roots about 4 inches across

Best for

• Colorful fresh slices in salads and slaws
• Pickling and garnishes
• Roasting to bring out sweetness
• Cool-season fall and late-summer plantings

How to grow

Sow seeds 1/2 inch deep directly in the garden, with germination in 4 to 12 days at soil temperatures of 45 to 95 degrees. Grow in full sun in well-drained soil with added organic matter and a pH of 6.0 to 7.0, avoiding excess nitrogen for good root development. Sow in late summer or fall for best results, since warm spring temperatures can cause bolting, and thin plants to 3 inches apart. Harvest around 3 to 4 inches across, as roots grow milder and woodier the longer they stay in the ground.

Flavor profile

Mild and peppery-sweet with crisp flesh and a striking pink interior.

About Grow Organic

Grow Organic, also known as Peaceful Valley, has supplied seeds, tools, and growing supplies to organic gardeners and farmers since 1976.

Sold by Grow Organic, based in Grass Valley, California.