Scientific Name:
Cotoneaster horizontalis
Pronunciation:
kuh-toe-nee-ASS-tur hor-ih-zon-TAY-liss
Common Name:
rockspray cotoneaster
Family Name:
Rosaceae
Plant Type:
Herbaceous perennial, Semi-evergreen, Shrub - deciduous
Key ID Features:
Locally evergreen in mild winters; layered habit with flattened, fishbone branching pattern; leaves alternate, most blades broadly elliptic-obovate, 8-11mm long x 6-8mm wide, purple-red in fall, petiole 2-3mm long; pomes bright red, 6-8mm wide. Winter ID: persistent fruit; lower leaves may still be attached or on ground.
Habit:
Arching, Horizontal, Spreading
Form:
Oval - horizontal
Texture:
Medium - fine
Mature Height:
0.7 - 1.3m
Mature Spread:
1.0 - 1.5m
Growth Rate:
Moderate
Origin:
S.E. Asia / Japan / China (w. China)
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Well-drained
Water Use:
Moderate
Landscape Uses:
Attract birds, Erosion control, Espalier, Fall interest, Group or mass planting, Mixed shrub border, Rock garden, Winter interest, Woodland margin
Additional Info:
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate
Texture/Venation:
Leathery
Surfaces:
Glabrous, Lustrous
Colour in Summer:
Dark-green
Colour in Fall:
Dark-green, Red, Dark-red, Bronze
Shapes:
Elliptic, Orbicular
Apices:
Acute
Bases:
Acute, Oblique (uneven)
Margins:
Entire
Inflorescence Type:
Flowers solitary
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Rotate/stellate
Colour (petals):
Showy, White, Red
Flower Scent:
None
Flower Time at Peak:
May, Jun
Fruit Type:
Pome
Fruit Colour:
Orange, Red
Fruiting Time:
Sep, Oct
Additional Info:
Showy, Persistent, not considered edible
Bark Morphology:
Smooth
Bark or Stem Colour:
Grey, Brown
Leaf Bud Type:
Ovoid
Leaf Scar Shape:
Half-round
Propagation:
Seed, Greenwood cuttings, Softwood cuttings, Hardwood cuttings
Maintenance:
Low
Pest Susceptibility:
Mites, Rust, Scale insects (Deer resistant, Drought tolerant)
