From the source "Hydrangeas for American Gardens," by Michael A. Dirr (2004):
H. aspera (Villosa Group)
Shrubs ar...Read Moree less course with narrower, more refined leaves. The leaves, stems, and flower stalks are densely villous; the spreading, curly hairs somewhat rust-colored. Leaf margins are fringed and minutely serrated with the lower surface grayish white. Leaves about one-half mature size by early April in zone 7b. I
nflorescences are lilac-blue to mauve-pink, with white to pink-mauve sepals. Will grow 6 to 10 feet high and about 6 feet wide, but can grow as large as 10 feet high by 15 feet wide in the right conditions. Needs evenly moist, organic-laden soils.
Cultivars listed within this group: 'Mauvette', 'Rocklon', 'Rosthornii', 'Sam McDonald', 'Velvet and Lace'.
Spreading to erect, deciduous shrub or small tree with lance-shaped to narrowly ovate, velvety, dark green leaves 3 1/2 to 10 inches long...Read More (9-25 cm). Late summer bears flattened corymbs of blue fertile flowers and lilac-white sterile flowers. At maturity will be 4-12 feet in height and width.
From the source "Hydrangeas for American Gardens," by Michael A. Dirr (2004):
H. aspera (Villosa Group)
Shrubs ar...Read More
Spreading to erect, deciduous shrub or small tree with lance-shaped to narrowly ovate, velvety, dark green leaves 3 1/2 to 10 inches long...Read More