Can someone provide some information for me regarding Zephyranthes (ran lilies)? I purchased some a few years ago from a local K-Mart simply because they were so cute! They rewarded me with many blooms for a few years. This year they have just flopped and not done anything. Should they be dug up and separated once in a while (are they too crowded and perhaps that is why they do not bloom?) Any suggestions would be greatly appreciated! Vicki McKernan Knoxville, TN