I made one last round to some farm markets that will be soon closing. I picked up some leftover pumpkins, some summer squash and some neck pumpkins. I love to roast pumpkin seeds for the kids. What are the chances these seeds will grow next year if I save some? I have heard that some seeds are programmed or treated to stop consumers from growing the seeds the next season, so they need to keep buying from the supplier. Then there are questions about growing true to variety, and whether a seed is a heirloom or not. The grower said they just buy plants or seeds every year, and stay away from using seeds from year to year, but basically this was from a cost versus hassle type thing. Anyone know much about this? Is it true you need a certain type seed from certain produce or they will not grow? I'm talking pumpkins. Comments?