Or is it five? I'm confused by missing yesterday while Blogger was down for repairs. Anyway this is quite a plant. It may take a year or two to take hold, but when it does....brace yourself. I know only from reading it in Dirr that this was a discovery of William Kosar, one of our own (an Arboretum scientist). In 1964.
Foster's is a hybrid of two native species a native hybrid? Foster's is a cross between Ilex opaca and Ilex cassine. Eventually reaching 30+ feet this is an impressive statement in the landscape.