Posted: 14/05/2013 at 17:04
Ok, not to worry. What has happened is that your single planted bulb has split and now you have 2 bulbs. The reason for their lack of height could be down to lack of food. The need feeding when the leaves first appear. Once the flower arrives the leaves have finished their bulb feeding duties and are dying down for their Summer rest. Leaving them to set seed may be pretty but it does take an awful lot out of the plant. So that is the answer, feed them next early winter and remove the spent flower heads.