Juniperus communis 'Berkshire' / Berkshire common juniper

Juniperus communis 'Berkshire' is a very dwarf, slow growing, dense flat mound of dark green foliage that turns plum purple with blue striations in winter, particularly in colder climates. After 10 years of growth, a mature specimen will measure 12 inches (30 cm) tall and wide, an annual growth rate of around 1 inch (2.5 cm).

This cultivar originated in the wild and collected in the mid-1970s in the Berkshire Mountains of western Massachusetts and named and introduced by Arnold Arboretum, Jamaica Plains, Massachusetts, USA.

Juniperus communis 'Berkshire' showing winter coloration.
Photo by David Olszyk