The topic of how old a seed can be and still be useable has been bantered around for many years. I have used leftover seeds from years past in my gardens for years. There are certain seeds that seem to stay fresh forever and other seeds that need to be used in a year or two. From my own personal use, I prefer fresh carrot seeds and squash seeds seem to store forever. I have also noticed seeds that seem to be slow starters don’t hold stay fresh...