Piel de Sapo melons are all Heirloom. Sort of shaped like a smaller football, these have a whitish flesh with pale light green by the rind. Will grow in zones 3 to 10. To our northern gardener friends, we suggest you transplant this variety. It's a superb Heirloom, rare, hard to find melon. You will not see this one at the store shelves. If you're growing for a farmers market, these melons definitely would make a great addition to any line up. Happy growing!!!