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© Deeproot Plant Base
common name: Oregon Grape, Blue Barberry
synonyms: Berberis aquifolium
shrub, evergreen, ground-cover
full sun, part shade, shade
moist soil, clay soil, sandy soil
preferred soil pH: any
minimum temp: -25°C
USDA zone: 5 to 9
Glossy green leaves turn purple in cold winter weather. Yellow flower clusters followed by the blue-black berries which give its common name. Very tough and good in shade.
Tolerant of a wide range of conditions but best in moist, well drained, moderately fertile, humus-rich soil in full or part shade.
If required, trim or cut back after flowering. Can be pruned hard to rejuvenate.
The roots have been used mediccinally to treat liver, gall-bladder and skin problems
Native to western North America, from Alaska to California.
Official state flower of Oregon, USA.