Oriental Lilies Are Not Blooming
My oriental lilies are not blooming. Why? It seemed to be ready to bloom and then started a slight droop.
Certified GKH Gardening Expert
They may have thrips. These attack the base of the flower and cause it to fall off eventually. Here is more information on them:
It may also be related to a lack of water or a root issue. Increase the water a bit and if it does not improve, try checking the roots as well.