Upper lake, Nostell Priory: The seed capsules of bladdernut contain hard seeds that have been used as beads. Bladdernut, Staphylea pinnata, is a deciduous shrub or small tree, native to central and southern Europe and Turkey. It was introduced to Britain in the 16th century. Bumble bees Catmint and geraniums are attracting bumble bees in the walled garden at Nostell Priory.