Mahonia 'Arthur Menzies'
Oregon grape 'Arthur Menzies'
An upright, evergreen shrub to 3m tall with leaves up to 45cm long comprising up to 19 spiny, blue-green leaflets. Upright racemes of lemon-yellow flowers begin to spread as the smallflowers start to open and may be followed by clusters of blue-purple berries
Size
Ultimate height
2.5–4 metresTime to ultimate height
5–10 yearsUltimate spread
1.5–2.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Blue Green | Blue Purple | ||
|---|---|---|---|---|
| Summer | Blue Green | |||
| Autumn | Yellow | Blue Green | ||
| Winter | Yellow | Blue Green |
Position
- Partial shade
Aspect
South–facing or North–facing or East–facing or West–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Berberidaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Bushy
- Potentially harmful
- Berries are ornamental, not to be eaten. Wear gloves and other protective equipment when handling
- Genus
Mahonia are evergreen shrubs with leathery, pinnate leaves which are often spine-toothed, and clustered racemes of sometimes fragrant yellow flowers, sometimes followed by black or purple berries
- Name status
Accepted
How to grow
Cultivation
Grow in humus-rich moist but well-drained soil, suited to full or partial shade in a sheltered position but tolerant of sun if soil is not too dry. See mahonia cultivation for further information
Propagation
Propagate by semi-ripe cuttings or leaf bud cuttings from late summer to autumn
Suggested planting locations and garden types
- City and courtyard gardens
- Coastal
- Cottage and informal garden
- Wildlife gardens
- Low Maintenance
- Flower borders and beds
Pruning
Pests
Generally pest-free
Diseases
Generally disease-free
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.