85-110 days. Organic Hale's Best Jumbo Cantaloupe Seeds. Cucumis melo. Non-GMO. Annual. Organic Hales Best Jumbo Cantaloupe melons are large and ribbed with an oval shape. When they reach full maturity, there are up to 6 pounds in weight each. They have a heavily netted texture on their skin, and their flesh is bright orange and very sweet. They are a summer crop that thrives in full sun. Easy to grow at home, these melons will produce an excellent harvest sure to spice up a green salad or fruit salad.