Japanese Maple

Acer palmatum

Native to:
Japan, Korea

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Sapindaceae
Genus:
Acer
Species:
Acer palmatum
USDA Symbol:
ACPA2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree
Height:
762 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
apr,may
Bloom Colors:
purple, red
Landscaping Shrub:
Yes

Keystone Species Ranking

Caterpillar Keystone:
★★★★★ Butterfly & moth species supported by this genus (NWF)

Reported Fauna Sightings

Bees: Pyrobombus Dalla Hummingbirds: Anna's Hummingbird (Calypte anna), Black-chinned Hummingbird (Archilochus alexandri), Costa's Hummingbird (Calypte costae), Ruby-throated Hummingbird (Archilochus colubris) Moths:Bagworm moth (Thyridopteryx ephemeraeformis), Rivula propinqualis, Spotted Tussock Moth (Lophocampa maculata), White-marked Tussock Moth (Orgyia leucostigma)

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Fall Color:
red, orange, yellow, purple

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 6.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers sheltered locations with consistent humidity

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–120 days
Germination Time:
14–90 days
Notes:
Seeds require cold-moist stratification. Germination improved by removing wings. Viability decreases rapidly with storage.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Sow @ 4C for 3 months, then place @ 20C for 3 months.

Source: Ontario Rock Garden & Hardy Plant Society