Radish Watermelon Seeds – Heirloom Sweet Specialty Root Classic

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Contains about 1 gram of seeds

$1.95

SKU: GS-7845-RAD-DEF

Free shipping on orders over $50

Organicly grown

Non GMO

Description

Radish 'Watermelon' (Raphanus sativus var. longipinnatus), also known as Red Sun or Rooseheart, is a stunning Chinese daikon-style heirloom heirloom prized for its remarkable internal color and sweet, mild flavor. Growing into round to oval roots 2.5 to 3.5 inches in diameter, the exterior displays a subtle pale green crown fading to a creamy white base. Slicing open the root reveals a brilliant, vibrant magenta-pink core resembling a mini watermelon. The flesh is crisp, juicy, and far milder than standard spring radishes, offering a sweet, slightly peppery flavor. A favorite choice for gourmet salads, pickling, raw vegetable platters, and autumn root garden displays.

Specifications

Plant Name: Radish 'Watermelon' / 'Rooseheart' (Raphanus sativus)
Cultivar Type: Heirloom, Open-Pollinated
Plant Class: Cool-Season Annual Root Vegetable
Color: Pale green to creamy white skin, brilliant magenta-pink interior flesh
Plant Characteristics: Large globe root habit (2.5–3.5 inches wide / 6–9 cm), dense crunchy texture, mild sweet flavor, strong leafy top canopy
Suitable Space: Vegetable garden rows, raised beds, deep container plots, fall harvest beds
Season: Late Summer through Autumn Harvest (Cool Season, ~50–60 Days to Maturity)
Best Time for Sowing (Zone 6b): Direct sow outdoors late July through August for optimal fall harvests (sow 0.5 inches deep). Autumn growing produces the sweetest flavor, deepest interior coloration,
prevents premature bolting caused by increasing spring daylight hours. Thin seedlings early to 4–6 inches apart.: prevents premature bolting caused by increasing spring daylight hours. Thin seedlings early to 4–6 inches apart.
Sunlight: Full Sun to Partial Shade (thrives in full sun during cool autumn days)
Watering Needs: Moderate (requires steady, consistent soil moisture to prevent root cracking, ensure crisp sweet flesh)
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What is included?

Contains about 1 gram of seeds

Check out the growing specs for the specific organic heirloom seeds you bought.

Good to know

Exceptional visual appeal with eye-catching magenta interior flesh, perfect for gourmet dishes, pickles
Crisp, sweet, exceptionally mild flavor lacking the sharp bite of standard summer radishes
Stores remarkably well in refrigeration or cool storage after late fall harvest

Best grown as a fall crop; spring plantings risk early bolting, smaller roots due to increasing day length
Requires longer maturity window (~55 days) and wider plant spacing compared to small spring radishes

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