80-90 Days to maturity. Citrullus lanatus. Greybelle Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. 15-20 pound round fruits. Greybelle watermelon is resistant to Anthracnose 1, Fusarium Wilt, are drought tolerant and resistant to sunburn. Approx. 600 seeds per ounce.