Ruscus aculeatus

RHS Plant Profile

butcher's broom

Other common names

box holly, knee holly, knee holm, knee hull, kneeholy, pettigree, pettigrue, prickly box, shepherd's myrtle, wild myrtle

Synonyms

Ruscus aculeatus f. pumilus

Shrubs

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A bushy sub-shrub to 75cm, with glossy lance-shaped cladophylls 2.5cm in length, flowering in spring, with glossy red berries on female plants in summer and autumn

Position

Full shade, Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 10–20 years
Max Spread: 0.5-1 metres
Max Height: 0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full shade Full sun Partial shade

Aspect: South–facing or North–facing or West–facing or East–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): H5
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asparagaceae
Native to GB/Ireland: Yes
Foliage: Evergreen
Habit: Bushy
Potentially harmful: Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus: Ruscus are rhizomatous evergreen subshrubs with flattened, leaf-like cladophylls bearing small pale green flowers, followed on female or hermaphrodite plants by glossy red berries
Name Status: Correct
Plant Range: Europe to Mediterr.

How to Grow

Cultivation

Dried stems may be used in floral arrangements. Individual shoots are short-lived. Grow in any but waterlogged soils

Propagation

Propagate by seed or division

Suggested planting locations and garden types

Wildlife gardens
Wildflower meadow
Low Maintenance
Cut flowers

Pruning

Cut out dead stems to the base in spring

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus in gardens where it is present but insufficient data to determine degree of susceptibility