Spiraea japonica 'Anthony Waterer'An attractive deciduous shrub, commonly known as Japanese spiraea, that performs well in a range of garden settings, grown for its pink flowers in summer. Expect it to reach around 0. 8m tall by 1. 2m wide at 10 years. Happy in full sun on most soils, and grows well in reasonably drained soil. Fully hardy throughout the UK and the flowers are a good nectar source for bees.