Acanthus mollis
bear's breech
A vigorous plant with large, glossy dark green leaves, pinnately lobed and, in late summer, tall racemes of white flowers with dusky purple bracts
Synonyms
Acanthus spinosisimus HostAcanthus lusitanicus hort.
Size
Ultimate height
1–1.5 metresTime to ultimate height
2–5 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Purple White | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full shade
- Full sun
- Partial shade
Aspect
South–facing or North–facing or West–facing or East–facing
Exposure
Exposed or ShelteredDrought resistance
Yes Hardiness
H6Botanical details
- Family
- Acanthaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Columnar upright
- Genus
Acanthus are robust herbaceous perennials with handsome, lobed foliage and tall, erect racemes of two-lipped flowers with colourful bracts
- Name status
Correct
- Plant range
- S Europe, NW Africa
How to grow
Cultivation
The ideal soil is a deep, fertile, well-drained loam but it will grow in most soils and has good drought tolerance. We advise against moving this plant as new shoots will emerge from deep roots unavoidably left behind and may be difficult to eradicate. Has the potential to become a nuisance if not managed well
Propagation
Propagate by division or by root cuttings
Suggested planting locations and garden types
- Mediterranean climate plants
- Architectural
- Cottage and informal garden
- Low Maintenance
- Flower borders and beds
- Cut flowers
Pruning
Cut down old flower stems
Pests
Generally pest-free
Diseases
Powdery mildews may be a problem
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.