Wall Cotoneaster

Cotoneaster horizontalis

Decne. Species

Cotoneaster horizontalis
guywallbanks via iNaturalist — CC BY 4.0
Cotoneaster horizontalis photograph 1 Cotoneaster horizontalis photograph 2 Cotoneaster horizontalis photograph 3 Cotoneaster horizontalis photograph 4 Cotoneaster horizontalis photograph 5 Cotoneaster horizontalis photograph 6
Botanical name
Cotoneaster horizontalis
Also known as
Herringbone Cotoneaster, Rock Cotoneaster, Rock-Spray, Rockspray, Rockspray Cotoneaster, Wall Cotoneaster, Wallspray
Family
Rosaceae
Genus
Cotoneaster
Flowering period
May to June
Height
60–100 cm
Spread
150–200 cm
Hardiness
Fully hardy (RHS H6)
Reference
World Flora Online

How to grow Wall Cotoneaster

Sunlight
Full sun to partial shade
Watering
Low; drought-tolerant once established
Soil
Any well-drained soil; tolerates poor, dry and chalky ground
Soil pH
Acid to alkaline

Planting

Plant in autumn or spring. The flat herringbone branch pattern presses against a wall or steps without needing support, and it also works as low ground cover on a dry bank.

Pruning

Little needed. Shorten or remove wayward shoots in late winter, cutting back to a branch junction so the herringbone pattern is not spoiled.

Propagation

Semi-ripe cuttings in summer, or seed after cold stratification. Self-sown seedlings from bird-dropped berries are common.

Pests and diseases

Fireblight can cause blackened, withered shoots that look scorched; cut well back into healthy wood and dispose of the prunings. Cotoneaster webber caterpillars occasionally spin up sections of foliage.

Value to wildlife

Very good value for its size - bees work the small pink-tinged flowers hard in late spring, and the red berries are taken by blackbirds, thrushes and waxwings.

Notes

This species is listed as an invasive non-native in Great Britain and it is an offence to plant it or cause it to grow in the wild; birds spread the seed readily into limestone grassland and old walls. If you already have it, that is not a problem, but think carefully before planting more, particularly near open countryside.

Some structured details on this page (such as tolerances, pH and hardiness) come from USDA PLANTS Database (public domain). The written guidance is GardenDecoded's own, researched as described in our editorial policy.

Other names for this plant

These names have all been used for Cotoneaster horizontalis but are no longer the accepted name. You may still meet them on old labels, in books, or in nursery catalogues.

Cotoneaster acuminatus unranked prostratus Cotoneaster acuminatus var. prostratus Cotoneaster atropurpureus Cotoneaster atrovirens Cotoneaster davidianus Cotoneaster davidianus Cotoneaster horizontalis f. variegatus Cotoneaster horizontalis var. horizontalis Cotoneaster horizontalis var. perpusillus Cotoneaster horizontalis var. typicus Cotoneaster horizontalis var. variegatus Cotoneaster microphyllus Cotoneaster perpusillus Cotoneaster perpusillus Cotoneaster symonsii Diospyros chaffanjonii Pyrus atroramosa Pyrus atrovirens Pyrus horizontalis Pyrus perpusilla

Others in Cotoneaster

Cotoneaster × crispii
Cotoneaster × intermedius
Cotoneaster × suecicus
Cotoneaster × watereri
Cotoneaster acuminatus
Cotoneaster acutifolius
Cotoneaster adpressus
Creeping Cotoneaster
Cotoneaster affinis
Purpleberry Cotoneaster

GardenDecoded is an educational gardening reference. Botanical data comes from World Flora Online and GBIF; growing guidance is our own. Always check a plant's toxicity and local invasiveness status before planting, and never eat or apply a plant based on this site alone.