From this picture I deduce that this Amaryllis, like many others, multiply easily. However, the one bulb I have of this stunning species has only bloomed once or twice and not since. Am I doing something wrong? Does it not like my climate zone? My other Amaryllis and Hippeastrum re-bloom readily.

This is a contributed photo Hetty so not even sure where it was photographed.
I have had one in a pot outside for years and it bloomed every year without anything extra done to it but last year it didn't and nothing yet this year so I guess I need to check it. Get colder nights that my previous home.

all of the bulb I need growing peace, during vegetation add minerals - the combined fertilizer for flower (N,P,K), compost and organic fertilizer is not appropriate, they are rich in nitrogen, also, there is a risk of rot.
growing peace 2-3 months in a colder period, leave to dry, sans water (When it is cold in Florida? )