Grow massive Black Diamond Watermelons with these 15+ heirloom, organic, non-GMO seeds. This giant variety produces thick-rinded, deep green melons weighing 30-50 lbs with sweet, bright red flesh. Thrives in full sun with well-drained soil, offering high-yielding, juicy watermelons perfect for summer gardens.
15+ fresh Black Diamond Watermelon seeds – Heirloom, organic, and non-GMO Produces giant 30-50 lb watermelons with sweet, deep red flesh Thick rind for better storage and resistance to splitting Thrives in full sun with well-drained soil – High-yielding and heat-tolerant Perfect for home gardens, market growers, and summer harvests
Common Name: Black Diamond Watermelon Scientific Name: Citrullus lanatus USDA Hardiness Zone: 3-10 (grown as an annual) Color: Dark green rind, bright red flesh Soil Type: Well-drained, sandy, loamy Sunlight: Full sun Watering: Moderate, deep watering Plant Height: 12-18 inches (vines spread up to 10 feet) Days to Maturity: 85-95 days Growth Habit: Vining Lifespan: Annual
