How to cold stratify seeds indoors First, make sure your seeds aren't too old. Seeds have alifespan, While the dates printed on the packages are merely guidelines, they’re based on many years of gardening experience, so set your expectations accordingly if you're using seeds that have "...
Scratch or nick the hard outer layer of the seeds with the tip of a sharp knife to scarify them, a process in which you “wound” the seeds for them to germinate. Fill a seed tray with a 3- to 4-inch layer of vermiculite or one part peat moss mixed with one part perlite. Plant ...