Two things come to mind Alfredo. Extreme heat and drought or, if the bud or flowers disappeared you may have deer raiding your garden at night. My friend grows hundreds of lilies and she use Plant Skydd to keep the deer from eating them. Best And Happy Yardening, Nancy.
Lilies Lost Flowers
Question From: A. Fontes - VIRGINIA
Q: Last year my lilies lost their extreme holding flowers. Leaves and trunk were OK. Any sugestions for this year? Thanks, Alfredo Fontes