Balsam Willow
Salix pyrifolia
- Native to:
- Canada, Labrador, Prince Edward I., United States
Ayotte, Gilles, 1948-




Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Salicaceae
- Genus:
- Salix
- Species:
- Salix pyrifolia
- USDA Symbol:
- SAPY
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Shrub , Tree
- Height:
- 600 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- apr,may,jun
- Bloom Colors:
- yellow, green
- Landscaping Shrub:
- Yes
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
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
Io moth (Automeris io), Dreamy Duskywing (Erynnis icelus)
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 and stump following fire or cutting.
Soil Requirements
- Soil Type:
- moist, nutrient-rich loamy soil
- pH:
- 5.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in wetlands and along streams
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 7–28 days
- Notes:
- Willow seeds are short-lived and must be sown fresh on moist substrate; no pretreatment needed.
The above propagation data sourced from Claude AI