Overview

Mahonia aquifolium Darhil ('Hillary') is a bushy, upright or spreading shrubs in the genus Mahonia, part of the Berberidaceae family, with evergreen, leathery, pinnate leaves, often spine-toothed foliage. Mahonia aquifolium Darhil ('Hillary') grows best in partial shade, and tolerates loam soils and neutral pH. Its UK hardiness is rated H7. Suggested uses include groundcover, woodland garden and border structure.

About

Mahonia aquifolium Darhil ('Hillary') is a cultivar of Mahonia, a genus of evergreen shrubs known for their tough, pinnate foliage with spiny edges. This bushy plant has an upright or spreading habit and features leathery, spine-toothed leaves. It thrives in partial shade, particularly in north-facing, sheltered spots with fertile, moist but well-drained loam soil of neutral pH. Hardy to UK zone H7, it is suitable for use as groundcover, in woodland gardens, or as border structure. Its season of interest spans spring and summer.

Growing conditions

Best soil and position for Mahonia

Sunlight
Partial shade
Soil type
Loam
Soil pH
Neutral
Soil moisture
Moist but well-drained
Aspect
North-facing
Exposure
Sheltered
UK hardiness
H7

Plant details

Mahonia aquifolium Darhil ('Hillary') size, habit and characteristics

Plant type
Shrubs
Habit
Bushy, upright or spreading
Foliage
Evergreen, leathery, pinnate leaves, often spine-toothed
Suggested uses
Groundcover, woodland garden, border structure

Care notes

Pruning and caring for Mahonia aquifolium Darhil ('Hillary')

Propagation
Semi-ripe cuttings, seed
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free

Frequently asked questions

Where is the best place to plant Mahonia aquifolium Darhil ('Hillary')?

Mahonia aquifolium Darhil ('Hillary') prefers partial shade. It suits sheltered positions.

What soil does Mahonia aquifolium Darhil ('Hillary') need?

Mahonia aquifolium Darhil ('Hillary') grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.

Is Mahonia aquifolium Darhil ('Hillary') hardy in the UK?

Mahonia aquifolium Darhil ('Hillary') has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.

How do I propagate Mahonia aquifolium Darhil ('Hillary')?

Semi-ripe cuttings, seed.

More in the Mahonia genus

Browse all Mahonia