Hydrangea involucrata Hortensia (Blue Rock Hydrangea)

Hydrangea involucrata Hortensia, also known as Blue Rock Hydrangea, is a deciduous shrub native to Japan and Korea. It has large, lacecap flowers with blue or pink petals, surrounded by showy, white bracts. The foliage is glossy dark green, turning bronze in the fall. This cultivar is known for its compact growth habit.