I have not tried to freeze daylily seeds. Has anyone tried this--then thawed them and planted them? If so, did any sprout? I have always frozen my tomato seeds. I have gotten better than 50% germination on some that were frozen 9 years. With seed prices being what they now are---that can be a real savings for gardeners. I think if the plant that produces the seed comes naturally from places that get Winter---one should be able to freeze them to increase longevity.