The regions in which melons grow in the United States are as varied as the different kinds of melons that can be named, the chief being watermelon, casaba, cantaloupe, crenshaw and Persian. Be excited to know that California and its close neighbors cultivate most of these popular varietals. Let's focus on watermelon. The first association we make is with its juicy flesh, but did you know that every part of the watermelon is edible, even the seeds and the rinds? Forty-four states grow watermelons of which with Texas, California, and Arizona are consistently the leaders the in production. This product is available year-round with peak time in May, June, July, and August.