I had a neighbor give me a "Sweet Potato Squash" last year. I saved the seeds, and am hoping that they sprout! She says her great grandmother gave her some seeds and they always grow and taste the same, year after year. She says the original parent squash was grown over 100 years ago! I'd never heard of the squash, but did it taste great with a little butter and cinnamon. I save every anti-moisture packet and use them in my saved seeds, works great!