Shoal Creek Chastetree. This is one of the finest summer flowering shrubs or small trees around. And this variety has one of the best floral displays of the species. Good rich blue spikes of up to 12" from June to September. When allowed to grow on its own, it develops a picturesque contorted branch structure that makes it a focal point even in the winter. Foliage is distinctly aromatic which keeps deer at bae, and it has a bluish-green cast. Native to southern Europe. Vitex has the common name "Chastetree" since Athenian women used the leaves in their beds to keep themselves chaste during the feasts of Ceres.