single beautiful hydrangea flower on a bush in a garden in the uk

anomala aspera azores bigleaf blue candida caudatifolia change china chinensis cinereal coacta corymb cultivated dark dumicola flowerheads flowering gracilis heteromalla hortensia hydrangea inflorescences lacecap lianas light macrophylla mainland mop mophead paniculate pink plants pompoms purple red rose shrubs soil species stems trees vessel viburnums water