Species: Mahonia aquifolium

(Ma-hoe'ni-ah a-kwi-fo'lee-um)

Oregon Grapeholly

Found on Course Walks

Broad-leaved Evergreens

Map of plant locations

(Plant location data may be incomplete)

In Collection(s):

None Listed

Cultivars

'Apollo', 'Compactum', 'Cosmo Crawl', 'Emerald', 'King's Ransom', 'Orange Flame'

Ornamental Characteristics

Size: Shrub 4 to 8 feet

Height: 3' - 6' (equal spread)

Leaves: Evergreen

Shape: variable - mounded to upright

Ornamental Other: broadleaf evergreen; leaves emerge Bright green or bronzy orange turning to dark green in summer, bronze purple in fall; fragrant yellow flowers open in March; grape-like fruit ripen in summer. Occasional tan leaves due to winter damage in full sun.

Environmental Characteristics

Light: Part shade

Hardy To Zone: 5b

Soil Ph: Can tolerate acid to neutral soil (pH 5.0 to 7.4)

Environmental Other: Prefers shade and shelter from winter sun and wind.

Moisture Tolerance: Consistently moist, well-drained soil; Occasional periods of dry soil
See graphic below

Insect Disease

relatively trouble free; possible problems caused by leaf rusts, leaf spots, leaf scorch, barberry aphid, scale, whitefly

Bare Root Transplanting

Other

native to Pacific Northwest from British Columbia to Oregon; transplant B & B or from container; treat as a groundcover in colder climates; popularized by Lewis and Clark