Description Hydrangea arborescens Incrediball Blush is a pink version of the normally white species with huge heads of silver-pink flowers that deepen to deep pink and then turn to chartreuse on strong stems that can keep the giant inflorescences upright. Smooth hydrangea is native to eastern North America and is among the hardiest in the genus. Foliage turns yellow in fall. Plants bloom on new wood so plants can be trimmed back to the ground in winter.
