Scarification: Pour boiling water over seed , let stand in water for 24 hours
Stratification: cold stratify for 90 days
Germination: sow seed 3/8" deep, tamp the soil, mulch the seed bed
Other: fall sowing in mulched beds is prefered to artificial stratification | if boiling water treatment does not allow seed to imbibe, sulfuric acid treatment is required
In a Nutshell:
* Cotoneaster horizontalis is a species of Cotoneaster that is a short shrub. It is cultivated as an ornamental plant grown in gardens and public parks for its decorative berries. The berry-like fruits are actually pomes . The fruits are red and contain three to five seeds. The flowers can range from pink to white. C. horizontalis is an important source of food for birds. more...
* Rockspray cotoneaster is a coarse, prostrate, slow-growing, horizontally-spreading, deciduous shrub, which typically matures to 12-18” tall and spreads to 5-8’ wide with tiers of flattened, horizontal branches arranged in a fishbone pattern. It features five-petaled, small pink flowers in early summer, bright scarlet berries in late summer to fall and tiny, rounded, lustrous, dark green leaves (to 3/8” long) that turn reddish-purple in fall. more...
* A low-growing, spreading shrub with shiny dark green leaves, reddish purple in fall, pink flowers followed by bright red fruit beginning in August, good substantial ground cover.