Why is my friends hydrangea covered in foliage but no flowers?
I had your problems when I moved from the city to a rural area and inherited lots of shrubs and flowers that I knew nothing about at all. Hydrangea’s are very demanding and need good soil, plenty of water during dry spells and also regular feeding. They don’t do well in cold and frosts so as I live in Scotland we never seem to do well with them. If its an indoor plant try re potting and if its outside give it plant food or try mulching peat round the base.