- The Grandeur hybrid is a true blocky, large Crimson Sweet type with a tough rind that shipps well.
Grandeur F1 Hybrid Watermelon Seeds. Citrullus lanatus. F1 Hybrid. Non-GMO. Annual. 73 days to maturity. A true blocky Crimson Sweet type with red-pink flesh. Fruit weigh up to 30 lb easily. Approximately 420 Seeds / Ounce.