Hi Mike,
Thanks for the input. I've read several different accounts of how big the tuber needs to be before an inflorescence might form. My largest tuber so far is ~4.5" wide. What has your experience been?
Next year I'll plant some of the larger tubers deeper and see if they'll overwinter outdoors. I'm thinking 8 to 10" deep. Last year was very mild here too with only one sub-zero night and one other down to zero. This without snow cover. I actually had three Z. albomaculata I missed survive!
