July 2020 – Colutea arborescens

The Plant of the Month for July 2020 is Colutea arborescens, the Bladder Senna. It is a leguminous shrub that has bladder-like seed pods at this time of year. The specimen in the Arboretum is young but the shrub will grow up to 4m in 10-20 years. It likes full sun and is hardy in all of the UK.