15+ Hydrangea Stems Turning Black. However the black stems are troubling, because this suggests a plant that's dying, rather than a mildew problem caused by dry conditions. Black rot, a fungal disease characterized by soft, rotted areas that begin on orchid.
Hydrangea arborescens, commonly known as smooth hydrangea or wild hydrangea, is native to moist or rocky wooded slopes, ravines, streambanks, and hydrangea arborescens is the most common hydrangea in north carolina.
Check out our hydrangea stems selection for the very best in unique or custom, handmade pieces from our craft supplies & tools shops. It looks as though the plant may be indoors? 'nigra' is a lovely hydrangea with pastel blooms. You'll want to prune right after the summer bloom season is done because it.