I am in zone 5 and dug up my non-hardy glads to discover that there are many little cormels. I did a little online research and got conflicting information. One site said to replant the cormels and they will flower the second year. The other said after curing [drying for storage], remove the old shriveled corms at the base of the mother corm. What if I want to multiply? When it comes time to plant, could I leave the cormels attached to the mother or could I detach and plant separately? Is glad propagation is not possible in zone 5? Please help.