My Dwarf rhododendron has long thin buds which have now opended, without any colour. This flowered well last year. I didn't do much to the plant, just removed any deadheads. There is new growth this year and plenty of buds, but just no colour. Should i prune back this new growth. This is its second year in the garden.
I, and a couple of others have also had the same problem so you might want to use the search section of the site to see if it might help. Margaret