Trident Maple

Acer buergerianum

Sapindaceae, Aceraceae · broadleaf deciduous tree · introduced

Last updated

A small deciduous tree from eastern China and Korea with three-lobed leaves unlike any other maple in cultivation. Each leaf has three distinct, forward-pointing triangular lobes with lustrous dark green upper surfaces. The bark matures into one of the tree's strongest features: gray-brown plates that exfoliate to reveal orange undertones, scaling off in irregular patches. Flowers are yellow, small, and forgettable in April to May. The samaras have nearly parallel wings, about 2 cm long. Fall color runs orange, red, and yellow.

Hardy to Zone 5a. Full sun. Tolerates urban conditions, compacted soils, and drought once established. Increasingly used as a street and shade tree where space is limited. Two cultivars are in the trade: 'Streetwise', selected for street tree form, and 'Miyasama Yatsubusa', a dwarf at six feet for containers and small gardens. Nineteen diseases and fifteen pests are documented at the genus level; Verticillium wilt is the primary structural threat, persisting indefinitely in soil where susceptible species have grown.

Plant Profile

Size & Form

Height
25-35 ft
Spread
20-30 ft
Growth Rate
Medium

Site Requirements

Light
Full Sun
Soil Drainage
Well Drained, Adaptable
Soil pH
acidic to neutral
Water
Low to moderate
Drought Tolerance
Moderate to high
Hardiness
Zones 5a–8b

Ornamental Interest

Bloom Time
April to May
Fall Color
Orange, red, yellow
Origin
eastern China and Korea
Watch for this season

Active Conidial Spread

Root Colonization Period

Wood DecayHigh

Wound Infection Window

AphidHigh

Peak Population & Dispersal

+ 9 more — see full disease and pest lists below

Diseases: Regionally Documented (17)

Pests: Regionally Documented (13)

Cultivars (2)
'Miyasama Yatsubusa'
Common name: Miyasama yatsubusa Trident Maple; Mature height: 6 ft
'Streetwise'
Common name: Streetwise Trident Maple Streetwise Maple
Hardy to USDA Zone 5
Data Maturity
Structured Multiple sources. Expert review underway.