Black Diamond Watermelon Seeds

Known for its thick, dark green rind and rich, juicy red flesh, the Black Diamond Watermelon is a summertime classic. This heirloom variety produces large, oval fruits that can weigh up to 30–50 pounds when fully grown. Its sweet, refreshing flavor and firm texture make it ideal for slicing, sharing, and feeding a crowd.

Black Diamond watermelons grow best in full sun with plenty of space to spread and develop. The thick rind protects the fruit from cracking and sun damage, making it a reliable producer in hot, sunny gardens.

🌱 Type: Heirloom, non-GMO
🌞 Sunlight: Full sun
🕒 Days to Maturity: 85–95 days
⚖️ Fruit Size: 30–50 lbs
📦 Includes: 8 premium seeds per packet
📍 Zones: Best in USDA zones 4–11 (warm season annual)

Grow bold. Harvest big. Black Diamond delivers the size, sweetness, and satisfaction of a true summer staple.