Ilex cornuta

RHS Plant Profile

Chinese holly

Other common names

horned holly

Shrubs

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Variable dense and slow-growing shrub to around 2.4m in height, with deep green spiny leaves distinctively shaped and larger than I. aquifolium cultivars. In female forms the white flowers are followed by large red berries if pollinated by a male cultivar, these are usually borne sporadically

Position

Full sun, Partial shade

Soil Types

Sand, Loam, Clay, Chalk

Max Height

1.5-2.5 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity: 10–20 years
Max Spread: 1.5-2.5 metres
Max Height: 1.5-2.5 metres

Growing Conditions

Sand Loam Clay Chalk

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

Position

Full sun Partial shade

Aspect: South–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): H6

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Aquifoliaceae
Native to GB/Ireland: No
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: Ilex can be deciduous or evergreen shrubs and trees with often spiny leaves, small white flowers (male and female usually on separate plants) and, on female plants, showy berries in autumn
Name Status: Correct
Plant Range: E China, Korea

How to Grow

Cultivation

Grow in moist but well-drained soil in full sun or part shade

Propagation

Propagate by semi-ripe cuttings in late summer or hardwood cuttings in autumn to midwinter

Suggested planting locations and garden types

Architectural
City and courtyard gardens
Cottage and informal garden
Wildlife gardens
Low Maintenance

Pruning

Pruning group 1; trim hedges in early spring

Pests

May be susceptible to scale insects, holly leaf miner and young shoots may be susceptible to aphids

Diseases

May be susceptible to holly leaf blight, Phytophthora root rot and sometimes honey fungus