I have a Crinum in a 14 inch x 14 inch pot. It has been in the pot for 3 years but never flowered, although it has plenty of healthy leaves. It is situated on a stone patio and is in the sun from about 9am till 4pm. Can you tell me why it does not flower please?
When purchasing Crinum Lily bulbs you should look for the words, 'bloom ready'.
Even you purchase these mature type bulbs it can take 2 to 3 years for the newly planted bulbs to take root and settle in.
Here is a link with more information.