- A native to China with a relation to the Daikon radish, the Watermelon variety seeds quickly and develops a unique fuscia interior flesh.

Radish Seeds - Watermelon

Sold Out

60-65 days. Watermelon Radish Seeds. Raphanus sativus. Non-GMO. Heirloom. AKA: "Roseheart Radish" or "Red Meat Radish". Watermelon Radish seeds are native to China and a cousin to Daikon radish. Watermelon Radish seeds quickly develop a fuschia interior" adding a vibrant color to dishes and making a perfect root vegetable for pickling! Watermelon radish is an eye-catching and reliable seller at any Farmers' Market. ~2,500 seeds/oz.

Download Free Vegetable Growing Guide PDF


Growing Non-GMO Watermelon Radish Vegetable Seeds

Download Free Vegetable Growing Guide PDFPDF icon

  • Latin Name: Raphanus sativus
  • Hardiness Zone: Annual 2-10
  • Days to Maturity: 60-65
  • Days to Germination: 3-7
  • Seeding Depth: 1/2 inches
  • Plant Spacing: 6-8 inches
  • Row Spacing: 6-8 inches
  • Plant Height: 8-12 inches
  • Growth Habit: Bulbous rooted upright
  • Soil Preference: Loose, light, fertilized, well-drained
  • Temperature Preference: 50-65 °F
  • Light Preference: Full sun
  • Pests and Diseases: Watch for flea beetles and aphids. Water soil directly to avoid saturating greens known to cause mildew.
  • Watermelon Radish Color: Light-green exterior, fuschia-colored interior with long stems
  • Watermelon Radish Flavor: Fresh with a balance between sweet and mild pepper

How to Grow Watermelon Radish from Seed

Winter radish seeds are a cool hardy staple best sown directly in mid-late summer for a fall harvest. Like many root vegetables, radish does not transplant well and should not be started indoors. Plant 2-3 Watermelon radish seeds 1/2" deep and 1-2" apart in very loose, Organic, well-drained soil with a pH of 6.5-7.0. Radish seeds germinate in 3-7 days, thinning out best starts to 4-6" apart depending on variety sown. Minimize nitrogen content when fertilizing to reduce small spindly roots and excessive greens. Winter radish, such as Daikon, is an overwintering cover crop specifically grown to repair and replenish poor and uncultivated soils during the winter.

Watermelon Radish seeds (Raphanus sativus) grow larger than spring varieties and will take longer to fully mature than smaller spring radishes. Annually harvested in fall, Watermelon Radish garden vegetables develop their roots into 3-4" wide bulbs in cooler temperatures.

Although this radish is known to be one of the fastest in terms of growth, their flavor and size will increase if left to bulge above the soil and not picked too early. Late summer-sown radish can overwinter and will grow their light-green exterior with long edible leafy stems by next spring.

Watermelon Radish in the Vegetable Garden

Winter radish is the larger, deeper, taproot variation of the smaller spring crop, growing very similar to the spring radish except needing a little extra time and space to mature. While Daikon is widely considered the standard of winter radishes, varieties such as Black Spanish Round, China Rose, or the hypnotic Watermelon offer surprising color and diversity for a winter hardy crop. Winter radish is a frost tolerant cover crop specifically grown to repair and replenish poor and uncultivated soils.

Watermelon radish has ball-shaped root that is about 4" in diameter. The color starts with deep green shoulders that fade to a bright white skin. Cut a watermelon radish open and discover a bright red flesh that is reminiscent of a summertime watermelon!

Harvesting Watermelon Radish

Many varieties of winter radish are ready to harvest in about 60-70 days from sowing. Using a gardening fork, harvest as roots begin to show 1-2" diameter above the soil. Sample one plant to determine if the rest of the crop is ready. Harvest radish promptly because roots will quickly spoil in the ground from the first winter frost. Not all winter radish is white and individual color showing will help determine if roots are ripe.

Around 60-65 days from the sowing date, you can pick your radish plants by hand and gently shake off the soil. By 30 days, the edible stems and leaves of radish plants can be eaten by cooking them as you would collard greens. You can also blend them up to make a pesto or to add to your green drink.

Fresh or cooked, winter radish crops are versatile and pair well with citrus. Pickled radishes are a flavorful and fun way to enjoy your harvested Watermelon Radish.

About Watermelon Radish Seeds

Raphanus sativus. (60-65 days) AKA: Roseheart Radish or Red Meat Radish

Radishes have been around since the time of the Romans, but this radish is relatively new.

Watermelon radish seems to be all the rage when I go to farmers markets or local Organic stores.

The reason is not only the flavor, but the intense interior color just like a watermelon!

Watermelon radish is crispy with mild and sweet flavor, excellent for salad, garnish and even cooking in Asian dishes.

TIP Watermelon radishes grow best in cool climates, suitable for fall/winter crops.

Watermelon Radish Seeds Per Package:

  • 4 g - Packet - Approx 350 Seeds
  • 1 oz- Wholesale - Approx 2,500 Seeds
  • 4 oz - Wholesale - Approx 10,000 Seeds
  • 1 lb - Wholesale - Approx 40,000 Seeds
  • 5 lb - Bulk - Approx 200,000 Seeds
  • 25 lb - Bulk - Approx 1,000,000 Seeds

Non-GMO Watermelon radish seeds are available for Fast Free Shipping on orders over $75.

Discover similar items in Vegetable Seeds

Spinach Giant Nobel Garden Seedsnon gmo giant nobel spinach seed bag

Spinach Seeds - Gian...

Starting at
Carrot Tendersweet Vegetable SeedNon GMO Tendersweet Carrot Seed

Carrot Seeds - Tende...

Starting at
Cucumber - Pickling - Boston Pickling Garden SeedNon-GMO Boston Pickling Cucumber

Cucumber Seeds - Pic...

Starting at
detroit dark red beet seedsNon-GMO Detroit Dark Red Beets

Beet Seeds - Detroit...

Starting at
Sweet Pepper - Big Rednon gmo big red sweet pepper seed bag

Pepper Seeds - Sweet...

Starting at
Squash Summer Zucchini Black Beauty SeedBulk Black Beauty Zucchini Seeds

Squash Seeds - Summe...

Starting at
Squash Summer Zucchini Black Beauty Organic SeedSquash Seeds - Summer - Zucchini Black Beauty (Organic) - Packet

Squash Seeds - Summe...

Starting at
Broccoli - Waltham 29 Garden and Microgreen SeedNon-GMO Waltham 29 Broccoli

Broccoli Seeds - Wal...

Starting at
Onion Utah Yellow Sweet Spanish SeedsUtah Yellow Sweet Spanish Onion Seeds - Bulk

Onion Seeds - Long -...

Starting at
Pea Snap Sugar Snap Seednon gmo sugar snap pea seeds

Pea Seeds - Snap - S...

Starting at

People who bought this product also bought

Beet - Golden Detroit Garden SeedNon-GMO Golden Detroit Beets

Beet Seeds - Golden ...

Starting at
Radish Cherry Belle Seedsnon gmo cherry belle radish seed bag

Radish Seeds - Cherr...

Starting at
Chives Herb and Flower SeedChives Microgreens

Chives Seeds

Starting at
Radish Seeds - Relish Cross - HybridPremium Bulk Seeds - Mylar Package

Radish Seeds - Relis...

Starting at
Sage - Broad Leaved Herb Seednon gmo broad leaved sage seed bag

Sage Seeds - Broad L...

Starting at

Radish, Daikon (Orga...

Starting at
Carrot - White Garden Seed

Carrot Seeds - Lunar...

Starting at
Watermelon - Sangria Hybrid Garden Seednon gmo sangria hybrid watermelon seed bag

Watermelon Seeds - P...

Starting at
Beet Chioggia Garden Seed

Beet Seeds - Chioggi...

Starting at
Radish Seeds - Chinese - Red MeatPremium Bulk Seeds - Mylar Package

Radish Seeds - Chine...

Starting at

Review data

out of 5 stars

reviews, Q&As