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An image of the plant grown with seed for Heirloom Watermelon Radish Seeds - Vibrant Green Exterior, Rose-Red Interior, Mild & Slightly Sweet, Perfect for Salads and Cooking, Non-GMO
  • An image of the plant grown with seed for Heirloom Watermelon Radish Seeds - Vibrant Green Exterior, Rose-Red Interior, Mild & Slightly Sweet, Perfect for Salads and Cooking, Non-GMO
Heirloom Watermelon Radish Seeds - Vibrant Green Exterior, Rose-Red Interior, Mild & Slightly Sweet, Perfect for Salads and Cooking, Non-GMO
$4.99 CAD
Maturity

60 Days
Sunlight

Full Sun
Watering

Regular

Difficulty

Easy to grow
Life cycle

Annual
Grow Zones

2 - 10

Quick Reference

Zones

Plant Hardiness Zones describe the average minimum winter temperature for a region. They tell you where a plant can reliably survive outdoors. For example, Zone 5 can handle colder winters than Zone 9. Matching a plant to your zone increases the chance of long-term success.

Days

  • For food crops: Days to maturity is the expected number of days from planting to first harvest. This helps gardeners plan their growing season and time their harvests.
  • For non-food plants: Days to germination indicates how long it usually takes seeds to sprout under normal conditions. This is key for starting seeds successfully.

Types

  • F1 (Hybrid): A cross between two parent varieties. Hybrids are bred for vigor, uniformity, and specific traits such as disease resistance. Seeds saved from F1 plants don’t grow true to type. That means if you try to regrow them from seed, the plant won't necessarily be the same as last year's
  • OP (Open-Pollinated): Varieties that naturally pollinate and remain stable across generations. Seeds can be saved and replanted with consistent results.
  • HM (Heirloom): An open-pollinated variety that has been handed down for many generations. Heirlooms are valued for flavor, tradition, and genetic diversity.

Grows

  • Outdoors: Well-suited for garden beds, raised beds, or open soil, where natural conditions are stable.
  • Windowsill: Compact plants that thrive in containers indoors, often needing only modest light.
  • Anywhere: Highly adaptable plants that perform reliably in both indoor and outdoor settings.

Lifecycle

  • Annual: Grows, flowers, sets seed, and dies in one growing season. Many vegetables and flowers are annuals.
  • Perennial: Lives for multiple years, regrowing each season after going dormant. Often used in landscaping or long-term food crops.
  • Sp. Perennial (Self-Perennializing): A plant that reseeds itself or self-pollinates, giving the effect of perennial growth even if individual plants live shorter lives.

Size

Indicates the recommended container size or soil depth for best growth.

  • “X″ Pot”: The ideal pot diameter (e.g., 5″ Pot), ensuring enough root space.
  • DS (Deep Soil): Requires planting directly in the ground or in a deep raised bed, as shallow pots restrict growth.
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  • Stunning Coloration: Eye-catching watermelon resemblance with a vibrant green outer layer and a bright rose-red interior, enhancing any dish visually.
  • Optimal Growing Conditions: Thrives in cooler, well-drained soils; plant early in spring for best flavor development. Lighter soils enrich growth.
  • Quick Growth Cycle: Fast-maturing radishes ready to harvest shortly after planting, extending your gardening gratification.
  • Versatile Culinary Uses: From raw additions in salads to a delightful component in roasts, stews, and stir-fries, these mild and slightly sweet radishes diversify your culinary palette.
  • Nutritional and Adaptable: The greens are rich in nutrients and can be used like other leafy vegetables. Exhibits resilience in varying garden conditions.

Heirloom Watermelon Radish Seeds are a must-have for any gardener looking to add a dash of color and flavor to their garden and kitchen. With its unique watermelon-like appearance, this radish features a vibrant green exterior and a striking rose-red interior. These radishes are not only a feast for the eyes but also offer a mild, slightly sweet taste that enhances any dish.

Perfect for planting in cooler, well-drained soils, these radishes thrive in early spring. Their quick growth cycle means you can enjoy fresh radishes in just about 60 days. Whether you're adding them raw to salads or cooking them in stews and roasts, their versatility is unmatched. Plus, the nutritious greens are a bonus that can be used in a variety of culinary creations. Start growing these delightful radishes today and bring a touch of elegance and health to your meals.
Size
How much seed do I need?

Seeds per gram: 100
Average germination rate: 85%

Package sizes

  • 7 g — 700 seeds — 595 plants — covers about 24–37 sq. ft. (at 2–3 in spacing)
  • 25 g — 2,500 seeds — 2,125 plants — covers about 85–133 sq. ft. (at 2–3 in spacing)
  • 125 g — 12,500 seeds — 10,625 plants — covers about 425–664 sq. ft. (at 2–3 in spacing)

Plant growth and coverage

  • Compact rosette habit with crisp, round roots
  • Height: 20–30 cm (8–12 in)
  • Spread: 10–15 cm (4–6 in)
  • Spacing: thin to 5–7.5 cm (2–3 in) in rows 25–30 cm (10–12 in) apart

Choosing a packet size

  • The 7 g packet is ideal for home gardeners, small beds, and container growers who want several successions of colorful radishes. Great for trying the variety while still planting generous rows.
  • The 25 g packet suits larger home gardens, community plots, or frequent succession sowings for steady harvests through cool seasons. A strong choice for avid cooks and small CSA shares.
  • The 125 g packet is best for market growers, restaurants, and larger landscapes planning multiple plantings or broad bed coverage. Provides ample seed for fall and spring successions across several beds.
GROWING INSTRUCTIONS

Sow Watermelon Radish seeds directly in the garden as soon as the soil can be worked in early spring. Choose a location with well-drained, fertile soil and full sun. Plant seeds 1cm deep and 1cm apart in rows spaced about 45cm apart.

Germination occurs within 5-10 days. Thin seedlings to about 5cm apart once they are large enough to handle. Ensure consistent moisture to encourage steady growth and prevent radishes from becoming woody. No transplanting is required.

Harvest radishes when they reach about 5-7cm in diameter, typically around 60 days after planting. Enjoy the radishes fresh in salads or cooked, and use the greens in sautés or soups. Regular harvesting encourages continuous growth.
SHIPPING & RETURNS

In Canada, we use fast shipping from our Canadian warehouses. You can expect delivery in 1-3 days.

In the USA, We use our US warehouses, and you can expect your order in 1-3 days, too.

No postaged lettermail or slow shipping from across the world. No customs fees or orders withheld at the border. Tracking numbers for all orders.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible. Our return policy covers you for late, damaged or defective products.

 Read Our Shipping & Returns Policy

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