hi all I have a bulb of Cyrtanthus spiralis which I traded for 2 years ago. When I got it it was a small bulb and it grew well. Last year it grew well again and is now the size of half a film cannister. This year all it has done is produce bulbs around it's side as well as growing a single leaf on the parent bulb. It's in a plastic pot filled with 50/50 top soil and grit and gets full sun all day from 10am until 7pm. Am I doing something wrong? Mark N Ireland zone 8