Spiraea 'Merlo Green', 3LThe bushy shrub Spiraea japonica Merlo Green earns its keep in the border, offering not only foliage that changes colour with the seasons but also bright pink flowers that attract pollinators. Leaves emerge purple red in spring before turning darker plum, then during summer they change to green, in time to act as a foil against the clusters of tiny bright pink flowers. Foliage then has one last hurrah, colouring coppery bronze before falling in late