saw-toothed hydrangea

A deciduous shrub, with narrowly ovate, serrated green leaves that often produce good autumn colour. This is a compact species, not usually more than 1.2m high and often much smaller. Flowers are produced from mid to late summer, in domed or flattened heads made up of very small fertile flowers and larger sterile ones. Flower colours range from red to blue depending on the pH of the soil, or sometimes white