Panicle hydrangeas, hydrangea paniculata, are known for their long panicles from which their large flowers bloom.
31+ Hydrangea Stems Turning Black. Thread in the hydrangeas forum forum by vanessa889: #orchidsfordummies #orchid #houseplants #americanorchids rots & spots.
Gardening expert val bourne advises. Flower colour changes according to soil ph and blooms in late spring through late summer. It looks as though the plant may be indoors?
If your hydrangea flowers dry out they will turn brown.
Very few people i met, have them. Of course, seeing such magnificent blooms. Stems are tuning black from the bottom up and plant seems to have a full time wilt. By far the greatest species diversity is in eastern asia, notably korea, china, and japan.