Crepe Myrtle Failure To Fully Bloom
My two crepe myrtles get fully loaded with flowers, but never totally unfurl completely. They are fairly mature, have been in the ground at least 15 years and are about 8-9 feet tall. Probably half the blossoms do unfurl, the rest just languish and dry up. I have tried watering them more and putting Miracle Grown on them. I also sprinkle coffee grounds on the soil. I think that has helped somewhat. I want to see them in their full glory this year. Any suggestions?
Douglas County Oregon
Thank you for your question. They need lots of sun, and I think your adding coffee grounds may be adding too much nitrogen, which promotes leaves but not flowers. Here is an Extension article with suggestions: https://www.lsuagcenter.com/portals/our_offices/research_stations/hammond/features/landscape_horticu...
Hope this is helpful. Good luck!