Dozen amaryllis bulbs won't rebloom anymore they used to now just big leaves, should we increase phospate? ty

we have a dozen amaryllis bulbs that are 10-15 years old and have re bloomed every year. after blooming we leave the leaves grow until the bulbs 3 month rest period, plants look great but most of the bulbs won't re bloom any more HELP US PLEAS TY very much

Dozen amaryllis bulbs won't rebloom anymore they used to now just big leaves, should we increase phospate? ty
They need replanting. Especially if they have been in the ground for that long.





Dig them up - loosen and enrich the soil. Mix in some compost and a little bonemeal. Then replant with 1/4 to 1/3 of the top of the bulb above the surface.