Open image in slideshow, Watermelon Black Diamond Heirloom Seed Packet - Ferry-Morse

Watermelon Black Diamond Heirloom Seed Packet - Ferry-Morse

$2.49

Black Diamond watermelon grows on tough, vigorous vines and fruits average 30-50 pounds, with some reaching up to 125 pounds. The dark, blue-green thick rind protects the sweet, firm bright-red flesh. Widely used throughout the South.

  • Flavor: Crisp, juicy, and sweet
  • Preparation Ideas: Perfect for a refreshing summer slice
  • Plant Type: Vegetable
  • Fill Weight (grams): 2.5
  • Grows Best In: Full Sun
  • Days to Germination: 6-8 Days
  • Days to Maturity: 75-95 Days
  • Growth Type: Vine
  • Planting Depth: 1"
  • Seed Spacing: 6'/8'

Instructions: Start seeds indoors 4 weeks before transplanting outdoors. Take care not to disturb roots when transplanting. Or, sow a few seeds over a hill 9 to 12 inches tall and 2 feet across. When plants are 3 inches tall, thin by cutting to 3 plants per hill. Use a balanced fertilizer to increase yield.

Suggestions: Choose a site with good drainage, good air circulation, and full sun. Ready to harvest when skin on underside turns yellow and when a thump with knuckles produces a hollow sound.