Toughleaf Dogwood
Cornus asperifolia
- Native to:
- United States
iNaturalist: © erikamonster (iNaturalist #274055375)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Cornaceae
- Genus:
- Cornus
- Species:
- Cornus asperifolia
- USDA Symbol:
- COAS2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub
- Height:
- 500 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- may,jun
- Bloom Colors:
- white, cream
- Landscaping Shrub:
- Yes
Wildlife Benefits
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★☆ Butterfly & moth species supported by this genus (NWF)
- Pollen Specialist Bee Keystone:
- ★☆☆☆☆ Native pollen specialist bee species supported by this genus (NWF)
Host Plant for Caterpillars
Caloptilia belfrageella, Garman Quaker (Orthosia garmani), Leconte's haploa (Haploa lecontei), white-spot moth (Antaeotricha leucillana)
Garden & Ecology Notes
- Wildlife Value:
- birds, butterflies, small mammals
- Fall Color:
- red, purple
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from root crown following fire. Tolerates occasional fire in woodland understory settings.
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- prefers riparian or wetland areas
Propagation & Germination
- Stratification:
- Warm then cold/moist stratification (double dormancy) — 60–120 days
- Germination Time:
- 30–90 days
- Notes:
- Double dormancy requiring warm stratification followed by cold stratification. Germination can be erratic.
The above propagation data sourced from Claude AI