are they alive? If yes, when to feed ...
I planted four varieties of crape myrtles in late summer last year. Three were 4' in height; the other, about 6'-7'. While we didn't experience an abnormally cold winter (although it was longer than usual ...38 degrees and four inches of snow last Thursday; yesterday it reached 80 degrees and dropped to only 66 degrees last night), the absence of buds are making me question the health of the plants. When I break off a small twig, the inside is a rich green color ... which I've heard is a good sign. Do these plants produce buds very late in the spring? Should I fertilize them now? If not, when would you suggest? I've typically used Plant Tone or a slow release like Osmacote on other in-ground plants. Would either of these be appropriate?
All suggestions are appreciated.