Forms a very dense shrub, olive green leaves. White flowers, with a yellow eye in upright trusses. Can survive cold exposed gardens,useful shelter plant or hedge. James Cunningham of Comely Bank 1830
Somewhere between Hardy anywhere in the UK and moderate parts of Europe such as Holland, southern Sweden, coastal Denmark, favourable parts of Germany etc, moderate parts of NE USA and eastern Canada. AND Hardy in colder parts of Germany and Scandinavia, New York, Nova Scotia, etc.