Undergreen Willow

Salix commutata

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Salicaceae
Genus:
Salix
Species:
Salix commutata
USDA Symbol:
SACO2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
500 cm
Light Requirements:
Full Sun,Part Shade,Shade
Drought Tolerance:
Low
Bloom Months:
may,jun,jul
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

Homoglaea carbonaria

Reported Fauna Sightings

Bees: Black-tailed bumble bee (Bombus melanopygus), Two-form bumble bee (Bombus bifarius)

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 mechanical damage.

Soil Requirements

Soil Type:
moist, fertile, well-drained loam
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Commonly found in wetland areas and along stream banks.

Propagation & Germination

Stratification:
None required
Germination Time:
7–28 days
Notes:
Willow seeds are short-lived and must be sown fresh on moist soil surface with light exposure for best germination.

The above propagation data sourced from Claude AI

Pre-treatment: Spring Hardwood or Summer Softwood Stem Cuttings of 10 to 15 cm in length and 9 mm in caliper treated with 1000 ppm IBA rooting hormone powder, then stuck in mistbed with bottom heat for 2 to 4 weeks.

Establishment: Salix commutata is easily produced by cuttings and has latent preformed root initials in the stem. Root emergence occurs within 1 week of treatment.

Source: npn.rngr.net