Black-Diamond-Watermelon Black Diamond Watermelon | Farm Supply Company

Farming Supplies

Black Diamond Watermelon

Heirloom. Black Diamond is a classic oblong watermelon with a black-green rind covering bright red, crisp, flavorful flesh. In the 1950s, Black Diamond was a very popular home garden variety. Fruits have gray-black seeds (perfect for seed spitting contests) and can grow quite large. In Arkansas, where itís rumored to have been developed, local gardeners recommend this melon for greased watermelon contests: Simply grease the melon, place it into a childís plastic swimming pool, and get ready for some fun as the kids chase it and try to grab it! Drought-resistant and prolific.

  • Light: Full sun
  • Fruit size: 30 to 50 pounds
  • Matures: 75 to 90 days
  • Plant spacing: 36 to 60 inches apart
  • Plant size: Long vine