Charleston Grey watermelon was introduced in 1954 by the Southeastern Vegetable Breeding Laboratory of Charleston, South Carolina Charleston Grey produces fruits that are large, light greenish gray, 28-35 lbs., cylindrical-shaped, 22" long by 10 in. across. Slice them open to find juicy, crisp, firm red flesh dripping with heavy watermelon flavor. Rind is thick enough to protect it from that bumpy trip to the beach house or market. This rind also helps protect it from sunburn as the fruit is growing in the garden. Zones 3-10