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Mellifera Botanicals

Watermelon, Black Diamond

Watermelon, Black Diamond

Regular price $2.99 USD
Regular price Sale price $2.99 USD
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25+ ‘Black Diamond’ Watermelon Seeds

Citrullus lanatus var. lanatus

Non-GMO, Heirloom, Open-Pollinated

These giant, emerald green, ‘Black Diamond’ Watermelons have a tough skin and juicy, bright red interior. The plants sport large leaves and a drought tolerant behavior, producing watermelons mid-season in warmer climates. Fruits can grow to 30-50 pounds and are crisp and flavorful!

For cool climate gardeners, sow indoors in peat pots 1 month before transplanting outside 1 week after the last frost. For warm climates, direct sow outside when the soil temperature has warmed up to 75 degrees Fahrenheit; direct sow into 6-8” tall mounds of soil. Ideal germination temperature is 80-85 degrees Fahrenheit.
  • Life Cycle: Annual
  • Season: Warm Weather
  • Light: Full Sun
  • Seed Depth: ½”
  • Germination Time: 3 – 10 days
  • Germination Rate: 80%
  • Plant Spacing: 8”
  • Days to Maturity: 90
  • USDA Hardiness Zone: 3-12

All varieties are guaranteed to be authentic and grow true to type.

Thank you for supporting our family-owned, small business!

Share your experience growing these seeds with us on Instagram @MelliferaBotanicals

Shipping & Returns

Orders are shipped out every week.

Returns are accepted for unopened items, within 24 days of delivery

We cannot accept returns on perishable products.

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