I read somewhere that sharkfin melons (Cucurbita ficifolia) keep for years, if kept dry. Is that really true? It seems an awesomely long time. I have some seeds on order, so even if no one else has experience here, I plan to find out.
It's definitely an unusually long-lasting melon, although sources list a few different timeframes. Sowing New Seeds says
if kept in a cool, dry, frost-free place, they keep very well for several months, and reportedly over a year.
The Curious Gardener increases that:
If kept dry after harvest, a fruit can last several years.