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Dark green watermelons: whole, half, and a slice showing sweet red flesh with seeds on a wooden table.

Black Diamond Watermelon

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by MIgardener Fulfilled by Seedtime
$2.00 $1.20 40% Off Sale
Availability:
Out of stock
~30
Seeds Per Packet
90
Days to Maturity

Black Diamond Watermelon is a bold and dramatic heirloom with deep, dark green-almost-black skin and brilliant, sweet red flesh that can grow to a staggering 50 pounds under ideal conditions. The thick rind protects the sweet, dense interior remarkably well, making it a classic choice for market growers and home gardeners who want a truly impressive harvest. Grown in light, sandy soil with consistent watering, these melons develop exceptional sweetness and a classic, satisfying crunch.

Seed Specifications
Non-GMO Heirloom Open Pollinated Heat Tolerant
Product Details
Life cycle
Annual
Scientific name
Citrullus lanatus
Growing Information
Light requirements
Full Sun
Seeding method
Direct Sow or Transplant
Days to germinate
5-10 days
Germination temp
70-90°F
Planting depth
1 inch
Plant spacing
3-4 feet
Row spacing
6-8 feet
Plant height
vine
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