I have just moved in (a couple of months now) to a new place with an existing patio garden. There are a number of small (1/2 m or less) rhodos in a box at the front of the deck. All flowered but are getting leggy and quite spindly. I believe they were planted about 12 years ago. I dead headed them after flowering. What can be done to make them look better (fuller and not spindly and leggy)? I also have one large rhodo in a different box, it is large leaved and about 1m high. It looks lovely, thick and healthy foliage - much nicer looking that the ones that did flower, but not a bud or blossom on it at all. What should I do to encourage it to bloom next year? As far as site - I am on False Creek and east facing so they get morning sun and are mostly in shade by early afternoon.
Sparse ones often have powdery mildew these days. Or yours are in too much shade. Or they are a sparse-growing variety. The other could be in too much shade, or it is a kind that does not bloom small.
