Create your own low growing pollinator hedge or an area divider with our stunning spiraea shirobana shrub plants and watch them flower up to autumn. This truly amazing spiraea variety produces flower heads (made up of many small individual flowers) that change colour as they age, meaning you\'ll have blooms of pink, white and almost red, at the same time, giving the plant a completely unique look! Flowers June-August. Height 50-60cm (20-24); spread 40-50cm (16-20). Supplied in a 3 litre pot.For guaranteed impact in sunny garden borders our summer flowering shrubs are unbeatable! Versatile and undemanding they can be very effective for adding colour, texture and interest at a time when we naturally spend most time in the garden.