- This large, round melon from Florida weighs 30-50 lbs and grows throughout the USA.
90 Days to maturity. Citrullus lanatus. Florida Giant Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, giant watermelon. The Florida Giant watermelon, AKA: Cannon Ball Watermelon, was developed in the 1940s in Florida by Melville Dillon. ~218 seeds/oz.