Diels' Cotoneaster

Cotoneaster dielsianus

Also known as: Cotoneaster sikangensis

Native to:
China

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Rosaceae
Genus:
Cotoneaster
Species:
Cotoneaster dielsianus
USDA Symbol:
CODI16

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
300 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun
Bloom Colors:
white, pink
Landscaping Shrub:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)

Garden & Ecology Notes

Wildlife Value:
birds
Deer Resistant:
Yes
Fall Color:
red, orange

Soil Requirements

Soil Type:
well-drained, fertile loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to rocky slopes and forest margins

Propagation & Germination

Stratification:
Warm then cold/moist stratification (double dormancy) — 90–120 days
Germination Time:
30–180 days
Notes:
Seeds have double dormancy requiring warm stratification followed by cold stratification. Germination can be erratic and slow.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Repeated cycles of 20C then 4C, 3 months each. Very prolonged. Requires light / surface sow (fine seed). | Requires scarification. | Requires soaking 24-48 hrs; discard floaters.

Source: Ontario Rock Garden & Hardy Plant Society