• Photo of Ilex aquifolium (Ilex aquifoliums)

Plant Profile: Ilex aquifolium

Taxonomy: Ilex aquifolium

Names

American Holly, Common Holly, English Holly, European Holly, Inkberry, Oregon Holly, Winterberry

  • Photo of Ilex aquifolium (Ilex aquifoliums)

Phonetic Spelling:EYE-leks a-kwee-FOH-lee-um

Genus:Ilex

Species:aquifolium

Family:Aquifoliaceae

English holly is a decorative tree or tall hedge belonging to the Aquifoliaceae family. Characterized by its shiny green leaves and thorny branches, it serves well as a standalone specimen, a tall hedge, or as part of foundation plantings. This plant prefers sheltered locations, as it struggles in high temperatures and humidity. Additionally, it should be protected from harsh winter winds. To produce berries that add color and interest in the fall, both male and female plants must be planted together. English holly is resilient to air pollution and should be pruned during winter to maintain its shape. It thrives in partial shade, particularly during hot summer months, and does not tolerate poor drainage.

In terms of pests, diseases, and other challenges, growing English holly in southern regions can be difficult due to its aversion to both hot summers and cold winters.

Ilex aquifolium Feature Summary

Ilex aquifolium Image Gallery

Tags

#fragrant
#thorns
#evergreen
#fragrant flowers
#specimen
#wildlife plant
#winter interest
#fall interest
#air pollution tolerant
#berries
#hedges
#specialized bees
#food source
#spines
#glossy leaves
#foundation planting
#pollinator plant
#bird friendly
#problem for cats
#problem for dogs
#bee friendly
#problem for horses

Similar Plants

Ilex aquifolium is often confused with:

Ilex aquifolium Feature Summary

Attributes
Europe, northern Africa, western Asia
Fruits are attractive to birds. Members of the genus Ilex support the following specialized bee: Colletes banksi.
Fruit
Red, yellow, or orange berries (drupes) 1/4 inch diameter that ripen in fall, persist into winter and are attractive to birds
Berry
Drupe
Red/Burgundy
Gold/Yellow
Orange
< 1 inch
Flowers
Insignificant greenish-white fragrant flowers. Need to plant male and female plants.
White
Insignificant
Green
4-5 petals/rays
Leaves
Dark green 1-3 in. alternate, simple, glossy, dark green wavy leaves with spines
Undulate
1-3 inches
Prickly
Glossy
Smooth
Slippery
1-3 inches
Poisonous to Humans
Vomiting, diarrhea, and depression. Leaves and berries are low toxicity.
Whole Plant Traits
Shrub
Tree
Erect
Pyramidal
Dense
Coarse
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Acid (<6.0)
Good Drainage
24-60 feet
12-24 feet
Coastal
Mountains
Piedmont
High Organic Matter
Loam (Silt)
Sand
Landscape
Pollinator Garden
Winter Garden
Hedge
Specimen
Pollinators
Songbirds
Bees
Specialized Bees
Problem for Cats
Problem for Dogs
Problem for Horses
Spines/Thorns

Ilex aquifolium Attributes

Ilex aquifolium: Country Or Region Of Origin

Europe, northern Africa, western Asia

Ilex aquifolium: Wildlife Value

Fruits are attractive to birds. Members of the genus Ilex support the following specialized bee: Colletes banksi.

Ilex aquifolium: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Ilex aquifolium Fruit

Ilex aquifolium: Fruit Description

Red, yellow, or orange berries (drupes) 1/4 inch diameter that ripen in fall, persist into winter and are attractive to birds

Ilex aquifolium: Fruit Type

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

Ilex aquifolium: Fruit Color

grass
Gold/Yellow
grass
Orange
grass
Red/Burgundy

Ilex aquifolium: Fruit Value To Gardener

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

Ilex aquifolium: Display/Harvest Time

Fall
Spring
Summer
Winter

Ilex aquifolium: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Ilex aquifolium: Fruit Width

< 1 inch
1-3 inches
> 3 inches

Ilex aquifolium Flowers

Ilex aquifolium: Flower Description

Insignificant greenish-white fragrant flowers. Need to plant male and female plants.

Ilex aquifolium: Flower Color

filter_vintage
Green
filter_vintage
Insignificant
filter_vintage
White

Ilex aquifolium: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Ilex aquifolium: Flower Value To Gardener

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

Ilex aquifolium: Flower Bloom Time

Winter
Spring
Summer
Fall

Ilex aquifolium: 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

Ilex aquifolium Leaves

Ilex aquifolium: Leaf Description

Dark green 1-3 in. alternate, simple, glossy, dark green wavy leaves with spines

Ilex aquifolium: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Ilex aquifolium: Leaf Color

spa
Green

Ilex aquifolium: Leaf Type

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

Ilex aquifolium: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Ilex aquifolium: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Ilex aquifolium: Hairs Present

No
Yes

Ilex aquifolium: Leaf Length

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

Ilex aquifolium: Leaf Feel

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

Ilex aquifolium: Leaf Width

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

Ilex aquifolium Poisonous to Humans

Ilex aquifolium: Poison Symptoms

Vomiting, diarrhea, and depression. Leaves and berries are low toxicity.

Ilex aquifolium: Poison Toxic Principle

Saponins

Ilex aquifolium: Poison Severity

High
Low
Medium

Ilex aquifolium: Causes Contact Dermatitis

No
Yes

Ilex aquifolium Whole Plant Traits

Ilex aquifolium: 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

Ilex aquifolium: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Ilex aquifolium: 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

Ilex aquifolium: Growth Rate

Slow
Medium
Rapid

Ilex aquifolium: Maintenance

Low
Medium
High

Ilex aquifolium: Texture

Fine
Medium
Coarse

Ilex aquifolium: Appendage

Prickles
Spines
Tendrils
Thorns

Ilex aquifolium Cultural Conditions

Ilex aquifolium: 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)

Ilex aquifolium: Soil pH

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

Ilex aquifolium: Soil Drainage

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

Ilex aquifolium: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Ilex aquifolium: NC Region

Coastal
Mountains
Piedmont

Ilex aquifolium: USDA Plant Hardiness Zone

thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b

Ilex aquifolium: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Ilex aquifolium Stem

Ilex aquifolium: Stem Is Aromatic

No
Yes

Ilex aquifolium Landscape

Ilex aquifolium: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Ilex aquifolium: 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

Ilex aquifolium: 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

Ilex aquifolium: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees

Ilex aquifolium: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy