Black Diamond Watermelon Seeds

"Sweet red flesh and dark green rind"

Sun: Full Sun

Days to Maturity: 90 Days

Fruit Weight: 30 lb. - 75 lb.

Packet: 10 Seeds

Price: $2.49

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Black Diamond is a classic heirloom watermelon that was popular in the 1950s and still is today. These round watermelons are huge, averaging in the 30 to 50 pound range. The rind is dark-green and thick while the flesh is bright red and crisp. Black Diamond watermelons are known for their juicy and sweet flesh. These large watermelons are perfect for home gardeners and market growers.

  • Quick Facts

    • Botanical Name: Citrullus lanatus

    • Life Cycle: Annual

    • Light Requirement: Full Sun

    • Planting Season: Warm Season

    • Plant Type: Long Vine

    • Features: Heirloom

    • Fruit Size: 30-75 lbs

    • Days to Maturity: 90 Days

    • Plant Spacing: 18”-36”

    • Planting Depth: 1 inch

    • Sowing Method: Start Indoors, Direct Sow

    • Cold Stratification: No

    • Hardiness Zones: 3, 4, 5, 6, 7, 8, 9, 10