Laburnum x watereri 'Vossii'
Tried and True Recommended by 1 Professional
Common Name: bean tree
Type: Tree
Family: Fabaceae
Zone: 5 to 7
Height: 15 to 30 feet
Spread: 15 to 30 feet
Bloom Time: May to June
Bloom Color: Yellow
Bloom Description: Yellow
Sun: Full sun to part shade
Water: Medium
Maintenance: Low
Flowers: Showy Flowers
Uses: Hedge, Flowering Tree

Culture

Best grown in organically rich, medium moisture, well-drained soils in full sun to part shade. Best in full sun, but appreciates some part afternoon shade in hot summer climates such as the St. Louis area. Performs poorly in the heat and humidity of the deep South (south of USDA Zone 7). Best performance generally occurs in climates such as the Pacific Northwest where both summer and winter temperature are moderate. In St. Louis, it is best sited in a protected location to minimize risk of damage from sub-zero winter temperatures. If trained as a small tree, root suckers must be removed as they appear. Also consider removing the seedpods as they appear because they are not particularly ornamental, they consume plant energies and they are quite poisonous.

Noteworthy Characteristics

Golden chain tree is a small deciduous tree or large shrub that is noted for its pendulous axillary racemes of yellow, wisteria-like flowers that bloom in spring. It is a hybrid cross between L. alpinum and L. anagyroides. It typically grows 25-30’ tall as a tree and 15-20’ tall as a shrub. Trifoliate, clover-like, medium green leaves (to 3” long) produce little fall color. ‘Vossii’ is a cultivar that produces pea-like yellow flowers in drooping racemes to 24” long in a profuse and often spectacular late spring bloom. Flowers give way to seedpods that ripen in the fall. All parts of this tree are poisonous.

Problems

Twig blight is an infrequent but potentially serious disease. Canker and leaf spot are lesser disease problems. Watch for aphids and mealybugs.

Garden Uses

Small specimen tree. Also may be grown as large shrub. Train for arbors, pergolas or espaliers. Good background plant.