Watermelon is a warm season fruit loved by just about everyone. They are great sliced, in fruit salads, and the rind is even used hollowed out as a serving basket or bowl. Understanding the best growing conditions for watermelons will help you grow this wonderful fruit. Like their cantaloupe cousins, watermelons demand 2-3 months of heat to produce ripe fruit, which makes growing watermelons in northern regions challenging, but not impossible. One tip would be to grow the vines in raised rows, known as hills, to ensure good drainage and help hold the sun’s heat longer. Space the plants about 2' apart in a 5' wide hill.