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botanical name:
Mahonia nervosa
Mahonia nervosa © Deeproot Plant Base
common name:  Oregon Grape, Cascade Barberry
synonyms:  Berberis nervosa
family:  Berberidaceae
characteristics: shrub, evergreen, ground-cover, scented/aromatic
height: 1.00m
width: 1.00m
growth rate: slow
growth habit: bushy
leaf colour: dark green
flower colour: yellow
fruit colour: blue
main season: All Year
medicinal symbol medicinal
aspect: full sun, part shade, shade
conditions: dry soil, moist soil, clay soil, sandy soil
preferred soil pH: neutral-acid
minimum temp: -20°C
USDA zone: 6 to 9
description:
Small evergreen shrub, slowly spreading by stolons. Short erect stems carry large pinnate leaves with spiny-toothed glossy dark green leaflets. In late autumn and winter the foliage often turns an attractive deep wine-red. Racemes of yellow flowers in spring, followed in summer by clusters of dark blue berries with a white powdery bloom.

cultivation:
Moist, well drained, humus-rich soil in part shade. Tolerates deep shade and also full sun in cooler regions. Once established will survive periods of drought.

propagation:
From seed, cuttings or by separating rooted suckers

usage:
Excellent ground cover and understorey plant for shady positions.

An extract of the root was used medicinally by Native North Americans.

other notes:
Native to the northwest coast of North America from British Columbia to central California

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