Acanthus mollis (Latifolius Group) 'Rue Ledan'

RHS Plant Profile

bear's breech 'Rue Ledan'

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Synonyms

Acanthus 'Rue Lodan'
Acanthus mollis 'Jardin en Face'
Acanthus mollis 'Jefalba'
Acanthus mollis 'Albiflorus'
Acanthus mollis 'Alba'
Acanthus mollis white-flowered

Herbaceous Perennial

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A clump-forming, semi-evergreen, herbaceous perennial to around 1.5m tall with broad, shallowly lobed, glossy, dark green leaves and upright racemes of white flowers with green hoods in late summer

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

1-1.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 1-1.5 metres
Max Height: 1-1.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: East–facing or North–facing or South–facing or West–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H6

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Acanthaceae
Native to GB/Ireland: No
Foliage: Semi evergreen
Habit: Clump forming, 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: Accepted

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. Do not move 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 in spring or autumn or by root cuttings in winter

Suggested planting locations and garden types

Architectural
Cottage and informal garden
Mediterranean climate plants
Flower borders and beds
Cut flowers

Pruning

Cut down old flower stems

Pests

Powdery mildews may be a problem

Diseases

Slugs and snails may be a problem