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Cascade Oregon-grape

Berberis nervosa

Also listed as Mahonia nervosa, Odostemon nervosus

Also known as Oregon-grape, Cascade Barberry, Dwarf Oregon-grape

shrub⛅ part shade💧 low water❄ Hardy: Zone 5a – Zone 9b

Climate Match for your location

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A low-growing evergreen shrub with finely textured blue-green leaflets that turn bronze-purple in fall and winter. It produces clusters of fragrant yellow flowers in spring followed by blue berries attractive to wildlife.

Why grow it

Cascade Oregon-grape is a low-growing alternative to taller Mahonia species, making it better suited to small gardens and foundation plantings where vertical space is limited. It offers year-round interest through evergreen foliage that shifts color seasonally, plus spring flowers and summer berries that support native pollinators and wildlife. The plant tolerates partial shade and acidic to neutral soils, thriving in conditions where many ornamental shrubs struggle.

Watch out for

This species spreads by underground rhizomes and can gradually expand beyond its initial planting area, requiring occasional division or boundary management. In regions with dry summers, supplemental water during establishment helps ensure vigorous growth, as the plant performs best with consistent moisture rather than drought conditions.

Overview

Form
Spreading
Growth Rate
slow
Size
1.5–2′ tall × 3–5′ wide
Dormancy
evergreen
Family
Berberidaceae
EdibleMedicinalHedgerow

Native to the United States

Native Range

Pacific Northwest native

Native to: California, Idaho, Oregon, Washington

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Harvest Season

J
F
M
A
M
J
J
A
S
O
N
D

Edible Parts

fruit

Season of Interest

SpringFallWinter

Similar shrubs you might consider:

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Companion Planting

Plants well with