Homegrown melons are a treat at summer picnics and get-togethers. Burgess Seed and Plant Co. offers a variety of melons for planting for sale, including watermelon, cantaloupe, honeydew and others. When selecting melons to buy for the home garden, take into consideration their space requirements. Many melon vines take up considerable space in the garden. For best results, melons need full sun or six or more hours of direct sunlight daily. If growing watermelons, keep in mind that most seedless watermelon varieties need a seeded watermelon plant nearby for pollination.