I currently have two Fritillaria coming into flower. Fritillaria Carica which I bought as bulbs last autumn and Fritillaria Drenovskii which I have grown from seed, sown in 2008. The flower stems of both plants are lying parallel to the compost instead of standing upright. They have been fed with a weak solution of tomato feed and kept sufficiently watered. Any suggestions as to why they are doing this and what I have done wrong would be gratefully appreciated.