Cotoneaster horizontalis
Rockspray Cotoneaster
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Rockspray Cotoneaster (Cotoneaster horizontalis) - Description
Cotoneaster horizontalis is a species of flowering plant in the genus Cotoneaster of the family Rosaceae, native to western China. It is a short shrub with a spreading habit, growing to 1 metre (3 ft 3 in) tall by 1. 5 metres (4 ft 11 in) wide. It is cultivated for its flat, symmetrical sprays of glossy green, deciduous leaves and masses of bright red berries (pomes) in autumn, persisting into winter.
Rockspray Cotoneaster (Cotoneaster horizontalis) - Blooming
Cotoneasters have white or pink flowers that bloom in the spring followed by red fruits in fall. Dwarf evergreens will fruit more vigorously if grown in full sun.
Rockspray Cotoneaster (Cotoneaster horizontalis) - Growth
Plants in this genus will range from 2-25 ft. tall. Evergreens do best in sun or partial shade, while deciduous species enjoy full sun. Grow Cotoneaster in a shrub border, as a screen or hedge, or trained against a wall. Dwarf species work best in rock gardens, and prostrate plants (C. cashmiriensis) make good groundcovers.
Rockspray Cotoneaster (Cotoneaster horizontalis) - Planting
Sow seeds as soon as ripe, in autumn, in a cold frame with containers. Cold frames are protective structures, located outside for propagating and growing plants. Can also propagate by rooting semi-ripe cuttings in late summer for the evergreen and semi-evergreen species. Semi-ripe cuttings are cuttings taken from semi-mature wood. In early summer, deciduous species can be propagated by rooting greenwood cuttings. Greenwood cuttings are taken from shoot-tips of plants, and are harder than softwood cuttings.
Rockspray Cotoneaster (Cotoneaster horizontalis) - Pest
Slugs, snails, spider mites, and scale insects. Other problems include stem cankers, fire blight, and powdery mildew.
Rockspray Cotoneaster (Cotoneaster horizontalis) - Interesting facts
Seeds of Cotoneaster can cause stomach discomfort upon consumption.
Rockspray Cotoneaster (Cotoneaster horizontalis) - Soil and irrigation
Cotoneasters are not fussy about soil type, but do prefer soil that is dry or poor rather than soil that is rich and moist.
