Autumn Willow
Salix serissima
- Native to:
- Canada, Labrador, United States
Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 594. Courtesy of Kentucky Native Plant Society. Scanned by Omnitek Inc.






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Salicaceae
- Genus:
- Salix
- Species:
- Salix serissima
- USDA Symbol:
- SASE2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub , Tree
- Height:
- 400 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul
- Bloom Colors:
- yellow, green
- Landscaping Shrub:
- Yes
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- 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
Cecropia moth (Hyalophora cecropia), Fall webworm (Hyphantria cunea), Furcula scolopendrina, Gelechia caudatae, Herald (Scoliopteryx libatrix), Io moth (Automeris io), Nevada buck moth (Hemileuca nevadensis), Portland Phosphila (Pheosia portlandia), Red-humped caterpillar moth (Schizura concinna), Western furcula moth (Furcula occidentalis), White Satin Moth (Leucoma salicis), Lorquin's admiral (Basilarchia lorquini), Mourning Cloak (Nymphalis antiopa), Western Tiger Swallowtail (Papilio rutulus)
Garden & Ecology Notes
- Wildlife Value:
- birds, bees, butterflies, small mammals
- Fall Color:
- yellow
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from the root crown following fire or cutting.
Soil Requirements
- Soil Type:
- rich, moist, organic soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in wetlands and bogs
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 7–28 days
- Notes:
- Willow seeds are short-lived and must be sown fresh on moist soil; they require light for germination.
The above propagation data sourced from Claude AI