calla lilies — no flower

Questionscalla lilies — no flower
Bernie Heavey Staff asked 15 years ago

have 3 calla lilies about 5 years. this year only one produced lilies, My neighbours is covered in lilies all year..should I cut off the old lilies or leave them?Same with “red hot poker ” should i cut away dead flower?I put chicken pellets mixed with compost on them last spring.