Scientific Name
Mahonia aquifolium
Common Name
Oregon grape holly

Hardiness Zones: 4 to 7
Habit: Evergreen
Growth Rate: Slow
Site Requirements: Partial shade; moist, well-drained, acidic soil; avoid hot, dry sites and harsh winds
Height: 3 to 6 feet
Width: 3 to 5 feet
Texture: Coarse to medium
Form: Informal; irregular; upright stems with limited branching
Flower/Fruit: 2 to 3" racemes of yellow flowers in early spring; mild fragrance; blue-black berries in summer
Foliage: Alternate, compound, leathery, glossy leaves; 6 to 12" long; 5 to 9 leaflets; reddish bronze new growth; purplish bronze in winter
Comments: Drought tolerant; suckers and may form colonies; color will bleach out if grown in full sun; dislikes summer heat
Cultivars: See table
   



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