About

Cotoneaster horizontalis is a low-growing, spreading deciduous shrub, reaching heights of up to 90 cm and spreading 1.5 m wide. It features unique flat sprays of foliage with a herringbone arrangement, adorned with small, glossy dark green leaves that transition to shades of orange and red in the fall. In late spring, the plant produces white flowers with a pink hue, which are succeeded by clusters of red berries.

About the genus

Cotoneaster comprises either deciduous or evergreen shrubs and small trees. The foliage consists of simple, whole leaves, while spring and summer bring clusters of small white or pink blooms. These flowers are succeeded by prominent berries that may be red, purple, or black.

Growing conditions

Sunlight

Full sun

Soil type

Chalk, Clay, Loam, Sand

Soil pH

Acid, Alkaline, Neutral

Soil moisture

Well-drained

Aspect

West-facing, East-facing, South-facing, North-facing

Exposure

Exposed, Sheltered

UK hardiness

H7

Plant details

Plant type

Shrubs

Habit

Trailing, Spreading branched

Foliage

Deciduous

Height

0.5-1 metres

Spread

1-1.5 metres

Time to full height

5-10 years

Native to

W China, Taiwan

Toxicity

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

Care notes

Cultivation

This plant is listed on Schedule 9 of the UK Wildlife & Countryside Act as an invasive non-native species. Although not banned from sale, it is an offence to plant or cause these to grow in the wild IN ENGLAND AND WALES. Gardeners possessing them should undertake measures to control them. See RHS advice on invasive non-native species for further information

Propagation

Please see cultivation notes

Pest resistance

May be susceptible to scale insects, Cotoneaster webber caterpillar, aphids and woolly aphid

Disease resistance

May be susceptible to fireblight and honey fungus