Berberis Thunbergii, or more commonly know as Japanese Barberry, is a shrub with dark green foliage and yellow flowers of the genus Berberis. It has a moderate growth rate and a height of 6 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring and summer, blooms during late spring and is intolerant of shade. Berberis Thunbergii or Japanese Barberry's floral region is North America US Lower 48, specifically in the states of Connecticut, Delaware, Georgia, Iowa, Illinois, Indiana, Kentucky, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, North Carolina, North Dakota, Nebraska, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Virginia, Vermont, Wisconsin and Wyoming.
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