- This dark green skinned melon has an intesely bright red flesh with seeds,and was developed in Arkansas in the 1950's with drought resistance.
90 Days to maturity. Citrullus lanatus. Black Diamond Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, Giant watermelon. Developed in Arkansas in the 1950s. Called black diamond because of its deep, dark green skin, it contrasts beautifully with intensely bright red flesh. ~215 seeds/oz.