Vine Maple

Acer circinatum

Native to:
Canada, United States

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Sapindaceae
Genus:
Acer
Species:
Acer circinatum
USDA Symbol:
ACCI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree , Vine
Height:
900 cm
Light Requirements:
Part Shade,Shade
Drought Tolerance:
Low
Bloom Months:
apr,may,jun
Bloom Colors:
purple, white
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)

Host Plant for Caterpillars

Elegant Sheep Moth (Hemileuca eglanterina), Io moth (Automeris io), Lace-winged zale (Zale minerea), Linden looper (Erannis tiliaria), Mournful Thorn (Lambdina fiscellaria), Spiramater lutra, stormy arches (Polia nimbosa), walnut spanworm moth (Phigalia plumogeraria)

Reported Fauna Sightings

Hummingbirds: Anna's Hummingbird (Calypte anna)

Garden & Ecology Notes

Wildlife Value:
birds, butterflies, small mammals, pollinators
Fall Color:
red, orange, yellow
Fire Notes:
Thin bark makes it susceptible to fire damage. Resprouts weakly from base after top-kill but is generally fire-sensitive.

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
good drainage preferred
Moisture:
consistently moist
Notes:
Thrives in understory of moist forests

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–120 days
Germination Time:
30–90 days
Notes:
Seeds germinate best after cold stratification. Surface sow or lightly cover as they benefit from some light during germination.

The above propagation data sourced from Claude AI

Pre-treatment: Collected seeds with attached samaras immediately placed in damp peat moss for 150+ days of cold moist stratification; or sown directly into flats with a rich propagation medium (high in peat moss) and placed in lathhouse at Corvallis OR in September for natural stratification.

Establishment: Ripened samaras collected at fall color-change from late August to early September - seeds allowed to dry out on tree may be harder to germinate, though viable. Plants occur both in understory of mixed conifers as a small tree, or in openings and cut-over clearings as multistem shrubs. Northwestern US, including Alaska and northern California, mostly west of the Cascade Mountain Range.

Source: npn.rngr.net