Koelreuteria bipinnata
kole-roo-TEER-ee-uh pa-NIK-you-lah-tuh

Goldenrain Tree
Sapindaceae (Soapberry family)
Origin: China, Korea and Japan, 1763

 

 

©Street Tree Division
City of Los Angeles - Department of Public Works
Bureau of Street Services

Species characteristics:
Form - Deciduous. Small and informal, slow to moderate growth to 25' and 15 - 25' spread with rounded crown. Dense branching.

Trunk - Bark is light brown, ridged and furrowed.

Foliage - Leaves to 15" long, imparipinnately compound, with 7 - 15 leaflets, each 1 - 3" long and 1 1/2" wide, may be toothed or lobed.

Flowers/fruit - Small yellow summer flowers 1/2" long grow in showy tenninal panicles 8 - 20" long. The fruits are papery-walled green, then salmon capsules, resembling lanterns, oblong-ovoid, 1 - 2' long, turning buff to brown in fall, persisting into winter.

No significant pest problems are known at this time. .

Site suitability:

Sunset zones - 2 - 21.

Clearances - Suitable for 5' minimum parkways, medians or cutouts. Suitable under utility lines.

Good for street sides, medians, and parks and lawns.

Culture considerations:
Best in neutral to acidic, well-drained soils. Drought tolerant with age. Chlorosis in exceedingly alkaline soils.

Comments, notes:
Tough, showy tree for difficult sites.