I though that amaryllis bulbs cannot be forced to bloom, so I did a small test. I have them in several pots for few years, during that time they have boom grown and gave a lot of babies. I decided to split all babies and plant them separately in a pot, and the big bulbs I planted in another pot. During this replant I had to cut most of the roots of each bulb. 2 pots are spited, 2 remained as is.
here one of the pots that was not splitted.
as you can see central bulb has no bud, and will not bloom, although last year it bloomed
here are all the small bulbs
and 2 big bulbs (about 7 cm in diameter) that were separated, as you can see each one starting a bud
So if you want your bulbs to bloom each year, separate them
