This highly ornamental shrub of the Saxifrage family produces showy pink, blue or white flowers. More than 20 species of hydrangea grow as natives in the central and southern areas of the United States but cannot thrive in colder temperature zones. The shrub usually grows between four and ten feet high, with heart-shaped leaves and flowers that appear in June and July.
Hydrangea is sometimes called “seven-bark,” a name which refers to the shrub’s stem bark, which peels off in seven thin layers of different colors. These shrubs were used by the Cherokee Indians who believed in their medicinal value. Hydrangea has also been used as a diuretic, cathartic and treatment for gall-stones.
A dense shrub or tree, growing to five feet in height, the arborescence hydrangea produces highly ornamental fragrant flowers from midsummer through to early fall.
They bloom most abundantly if placed in sun and given sufficient moisture. Generally in fall or early spring, branches of the previous years grow back to a single pair of buds. Weaker are always cut off, and the less hard should be given protection during midrange as can be propagated by fairly ripe wood, by layering or by digs.
Common hydrangea hardy throughout the United States rarely troubled by insects and diseases dense shrub or tree growing from six high, and has off-white flowers that August and September. Hortensia, much grown in the South plant and in greenhouses, has been successfully outdoors in northern gradually grows to ten feet.
Since flower heads are quite often necessary to support the plaza should be done in early spring beams well.