Just a bit about my experience with crocs from TLG.
I ordered Vera Cruz (very tall, huge corms) and Alborado (very short, substantially smaller corms) from the Lily Garden this past spring. I had to hold them a few weeks before planting because my clay soil was unworkable. They were very slow to emerge (I know this is subjective and I was getting impatient). But they did grow. Vera Cruz is just now budding out; I think they will bloom earlier next year. Alborado... I don't think they will bloom this year and I don't feel stalks forming in them. I'll see what happens next year.
On her website Judith says that a good mulch will add 2 zones to the stated hardiness zone. For me, my biggest concern is the clay soil plus the amount of rain we get in the winter. I think I might lift one corm of each as "insurance". I have lost glads, a relative, due to too much rain over the winter.
