August: The Make-Or-Break Month For Potato Weight4:39 Your browser does not support the audio element. GardeningLush green potato foliage in late summer can be misleading. com/it/photos/patate-verdure-erdfrucht-bio-1585060/ by Couleur, https://creativecommons.org/licenses/by/4.0/ PotatoesPhotosynthesis continues as long as the leaves stay green, pumping nutrients into the tubers. Skin Hardening and Harvest TimingHow to Harden Potato Skins for Storage A method to trigger natural foliage drying and skin thickening two weeks before digging. In colder soil, tubers lose flavor and storage quality.