How long can a winter squash last in storage? I’ve had fig-leaf squash (Cucurbita ficifolia) remain sound for three years. This winter squash (C. maxima) and a few spaghetti squash (C. pepo) I harvested in September 2014 show no signs of deterioration. They are now thirteen months old since harvest. There was nothing special about their storage. I kept them in my basement on a wooden table and gave no attention to humidity or temperature. Other squash near them began to rot in July and August so maybe this winter squash and the spaghetti squash are different in some way.
I’ve already opened a few of the spaghetti squash and cooked them. They were a bit dry but there was no bad smell or off flavor. Tomorrow, I’ll be cutting open the winter squash and cooking it. Stay tuned.