• Photo of Ruscus aculeatus (Ruscus aculeatuss)

Plant Profile: Ruscus aculeatus

Names

Butcher's Broom, Knee Holly, Piaranthus

  • Photo of Ruscus aculeatus (Ruscus aculeatuss)

Phonetic Spelling:RUS-kus ah-kew-LAY-ah-tus

Genus:Ruscus

Species:aculeatus

Family:Asparagaceae

Ruscus aculeatus, commonly referred to as Butcher's broom, is an evergreen shrub that thrives in partially shaded or lightly shaded areas, although it can also endure full shade. It adapts well to various soil types, particularly average well-drained soil, and can serve effectively as a hedge. This resilient plant is capable of withstanding drought, heat, and salt conditions. It features a slowly spreading root system that can create large clumps and may produce suckers to form colonies. In spring, it is advisable to prune away any dead stems at the base. The plant is also known as Knee Holly due to its mature height, which typically reaches the level of a person's knee.

Most Ruscus species are dioecious, meaning they have distinct male and female plants, but this particular species can occasionally produce self-fertile flowers. To optimize fruit production, it is recommended to plant one male for every six females. While the flowers themselves are not particularly noteworthy, they give way to vibrant, waxy red berries that persist from late summer through winter. Interestingly, the actual leaves of this shrub are quite small; the glossy dark green structures that resemble leaves are actually modified stems or shoots that support the flowers and berries.

**Diseases, Insects, and Other Plant Problems:**
There are no known issues with insects or diseases affecting this plant.

Ruscus aculeatus Feature Summary

Ruscus aculeatus Image Gallery

Tags

#evergreen
#showy berries
#heat tolerant
#drought tolerant
#shrub
#salt tolerant
#hedges

Similar Plants

Ruscus aculeatus Feature Summary

Attributes
North Africa, West Asia, Europe
Fruit
Glossy red fruit on female plants in fall (provided there is a male plant nearby). Persists into winter.
Red/Burgundy
Flowers
Small, dull gray-white flowers in spring. Some cultivars are perfect flowered.
Colored Sepals
< 1 inch
Leaves
Actual leaves are microscopic. The bush does display ovate, thick, spiny-tipped, glossy dark green, leaf-like structures (to 1 1/2 inches long) that are flattened leaf-like shoots (modified stems) called cladophylls on which the flowers and fruits are borne.
Green
Gray/Silver
White
1-3 inches
Prickly
Whole Plant Traits
Cultural Conditions
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Deep shade (Less than 2 hours to no direct sunlight)
Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)
Good Drainage
Coastal
Piedmont
Clay
High Organic Matter
Loam (Silt)
Sand
Landscape
Hedge
Barrier
Drought
Salt
Heavy Shade

Ruscus aculeatus Attributes

Ruscus aculeatus: Country Or Region Of Origin

North Africa, West Asia, Europe

Ruscus aculeatus: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Ruscus aculeatus: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Ruscus aculeatus Fruit

Ruscus aculeatus: Fruit Description

Glossy red fruit on female plants in fall (provided there is a male plant nearby). Persists into winter.

Ruscus aculeatus: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Ruscus aculeatus: Fruit Color

grass
Red/Burgundy

Ruscus aculeatus: Fruit Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Ruscus aculeatus: Display/Harvest Time

Fall
Spring
Summer
Winter

Ruscus aculeatus Flowers

Ruscus aculeatus: Flower Description

Small, dull gray-white flowers in spring. Some cultivars are perfect flowered.

Ruscus aculeatus: Flower Color

filter_vintage
White

Ruscus aculeatus: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Ruscus aculeatus: Flower Bloom Time

Winter
Spring
Summer
Fall

Ruscus aculeatus: Flower Petals

2-3 rays/petals
4-5 petals/rays
6 petals/rays
7 - 20 petals/rays
asymmetrical petals
Bracts
Colored Sepals
fused petals
more than 20 petals/rays
Tepals

Ruscus aculeatus: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Ruscus aculeatus: Flower Size

1-3 inches
3-6 inches
< 1 inch
> 6 inches

Ruscus aculeatus Leaves

Ruscus aculeatus: Leaf Description

Actual leaves are microscopic. The bush does display ovate, thick, spiny-tipped, glossy dark green, leaf-like structures (to 1 1/2 inches long) that are flattened leaf-like shoots (modified stems) called cladophylls on which the flowers and fruits are borne.

Ruscus aculeatus: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Ruscus aculeatus: Leaf Color

spa
Gray/Silver
spa
Green
spa
White

Ruscus aculeatus: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Ruscus aculeatus: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Ruscus aculeatus: Hairs Present

No
Yes

Ruscus aculeatus: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Ruscus aculeatus: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Ruscus aculeatus: Leaf Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long-lasting
Showy

Ruscus aculeatus Whole Plant Traits

Ruscus aculeatus: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Ruscus aculeatus: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Ruscus aculeatus: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Ruscus aculeatus: Growth Rate

Slow
Medium
Rapid

Ruscus aculeatus: Maintenance

Low
Medium
High

Ruscus aculeatus: Texture

Fine
Medium
Coarse

Ruscus aculeatus: Appendage

Prickles
Spines
Tendrils
Thorns

Ruscus aculeatus Cultural Conditions

Ruscus aculeatus: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Ruscus aculeatus: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Ruscus aculeatus: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Ruscus aculeatus: NC Region

Coastal
Mountains
Piedmont

Ruscus aculeatus: USDA Plant Hardiness Zone

thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Ruscus aculeatus: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Ruscus aculeatus Stem

Ruscus aculeatus: Stem Is Aromatic

No
Yes

Ruscus aculeatus Landscape

Ruscus aculeatus: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Ruscus aculeatus: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Ruscus aculeatus: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland