when do i pick buttercup squash
How to Pick Buttercup Squash. Buttercup squash thrive in U.S. Department of Agriculture plant hardiness zones 5 through 9. Buttercup squash, of the Cucurbita genus, is a winter variety known for its sweet, fine-grain flesh and gray cap on the blossom end. Although buttercup squash typically start maturing in late August or early September, you should check for ripeness a few weeks earlier if your area experiences a heat wave.