Melon Seeds - Cantaloupe - Ambrosia Hybrid85 days. The Ambrosia Hybrid variety of cantaloupe is a large melon with a sweet taste. The vine produces melons that reach maturity in eighty five days. These seeds do best with full sun, in zones three to nine. Rich, sandy soil is preferable. Recommended by USU. This locally favored cantaloupe has thick, peach colored flesh with a small seed cavity. 6 inch melons have outstanding flavor. Resistant to Powdery Mildew. Approx. 985 seeds oz. Growing