Grow Heirloom Watermelons – Plant Yellow Petite Watermelon Seeds. A great tasting and aromatic beauty at just 6-10 pounds, Yellow Petite Watermelon is the perfect size for small gardens. Referred to as an “Icebox” watermelon, it fits nicely into your fridge for summertime snacking. Best suited for shorter growing seasons, Yellow Petite matures in just over 2 months!