I've saved seed from some perenials, many of which require cold stratification. This is a new process for me. There are tricks that I'm reading about with damp soil in sealed bags in the refridgerator, just before a spring indoor seed start. Today I'm also going to try seeding some in pots and burying the pots outdoors for a more normal stratification process. My winters may be too cold for this process, which could explain why my list of flowers does not normally self seed in the garden. ( with the exception of Columbine and Musk Mallow). Right now the list is Oriental Poppy, Pasque Flower, Delphinium, Double Columbine, Musk Mallow and Sea Holly. I'm curious about the cold stratification process, and the experience others have had with growing plants that required cold stratification. Any hints or advice would be appreciated.