Why aren't my crepe myrtles blooming?
I have three crepe myrtles, ( pink, white and red) that are approx. 15 years old and 20' tall on the edge of my yard. I moved here 3 years ago and they bloomed very nicely the first year, less the second and now in the third are not making a very good show at all. They have now started blooming about a month later than the first of many specimens in my area. . . some of which have definitely been "crepe murdered" as described in this forum but blooming nicely. Mine appear to be very healthy, no dead limbs or disease that I can detect, and have never been pruned as far as I can tell. There is some noticeable lichen growth on some limbs but I have read that this is normal. . .?? Should they be lightly pruned and/or fertilized? What is the life expectancy of these plants? What to do?