Juniperus virginiana 'Corcorcor' EMERALD SENTINEL„¢ USPP5041, is an upright, rather narrow selection of eastern red-cedar with bright green foliage. This is a female, fruiting cultivar that is deemed to have superior disease resistance and is considered one of the toughest plants in the nursery trade. After 10 years in the landscape, a mature specimen can measure up to 20 feet (6 m) tall and 8 feet (2.6 m) wide, a rate of growth approaching 2 feet (60 cm) annually. It is quite suitable for hedgerows where arborvitae may be inappropriate.
This cultivar originated as a chance seedling selected by Clifford D. Corliss and Brothers Nursery Inc., Ipswich, Massachusetts. Refer to this link for a complete description of the plant patent pertaining to Emerald Sentinel„¢.