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Mahonia japonica (Oregon grape)

Beginner
skill rating
1 hour care
per year
0.6m
Max height
1.2m
Max spread
10-20 years
To maturity

Plant details

Botanical name

Mahonia japonica

Other names

Oregon grape

Genus

Mahonia Mahonia

Species

M. japonica - M. japonica is a winter-flowering evergreen shrub with terminal clusters of lemon-yellow blooms. The foliage turns a rich reddish-purple in the winter.


Mahonia japonica is: Evergreen

Fragrance

Flowers are fragrant.

Habit

Bushy, Spreading

Awards

RHS AGM (Award of Garden Merit)

Flower

Yellow in Winter

Foliage

Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn; Purple, Dark-green in Winter

How to care

Watch out for

Pests

Generally pest-free.

Powdery mildew , Rust Powdery mildew , Rust

General care

Propagation methods

Seed, Semi-hardwood cuttings


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Where to grow

Mahonia japonica (Oregon grape) will reach a height of 0.6m and a spread of 1.2m after 10-20 years.

Suggested uses

Architectural, Banks and Slopes, Low Maintenance, Resistant to pollution, Wildlife, Drought Tolerant, Ground Cover, Woodland

Cultivation

Plant in well-drained, or moist but well-drained, soil in shade or partial shade.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Shade

Aspect

North, South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

Botanical name

Mahonia japonica

Other names

Oregon grape

Genus

Mahonia Mahonia

Species

M. japonica - M. japonica is a winter-flowering evergreen shrub with terminal clusters of lemon-yellow blooms. The foliage turns a rich reddish-purple in the winter.

Foliage

Evergreen

Fragrance

Flowers are fragrant.

Habit

Bushy, Spreading

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Yellow in Winter

Foliage

Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn; Purple, Dark-green in Winter


How to care

Watch out for

Pests

Generally pest-free.

Specific diseases

Powdery mildew , Rust

General care

Propagation methods

Seed, Semi-hardwood cuttings


Monthly care advice


Where to grow

Mahonia japonica (Oregon grape) will reach a height of 0.6m and a spread of 1.2m after 10-20 years.

Suggested uses

Architectural, Banks and Slopes, Low Maintenance, Resistant to pollution, Wildlife, Drought Tolerant, Ground Cover, Woodland

Cultivation

Plant in well-drained, or moist but well-drained, soil in shade or partial shade.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Shade

Aspect

North, South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 8, Zone 7

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This plant likes... Garden match
Soil types: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Partial Shade, Full Shade Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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