The grape seeds that I save MUST be stratified to germinate (90-120 days at 33-39 degrees). I store them at room temperature, first. I put them in the fridge 90-120 days before I want to plant them.
I don't know if these are the same requirements for Muscadines and Scuppernongs. You'll find out.
I'm not sure, but freezing them might kill them.
Gary
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