Hydrangea involucrata and its cultivars

摘要

A resurgence of new cultivars is helping to restore the reputation of this Japanese hydrangea.Maurice Foster,who grows most of them, compares the new with the oldThe Japanese name for Hydrangea involucrata is tama-ajisai. This translates as 'globe hydrangea', which, like the species name, is a reference to the large, spherical inflorescence bud wrapped in a whorl of bracts. This is a distinctive and defining feature, found only in Hydrangea involucrata and H. longifolia in the Asiatic section Asperae, and in section Cornidia - climbing evergreen species from Asia and South America.