WSU Clark County Extension
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Siberian Peashrub

Scientific name: Caragana arborescens
Taxonomy
Family:Leguminosae
Type:Deciduous tree
Native:NO
Plant Requirements
Zone:2 to 8
Sun:Full to partial sun
Moisture:Dry
Plant Characteristics
Height:20 ft
Width:15 ft
Bloom:Showy flowers
Bloom Time:May
Bloom Color:Yellow
Additional Characteristics
Trees


Fruit

Leaves


Bark
Wildlife value

Poisonous
Description Siberian Peashrub is best known for its profusion of yellow snapdragon shaped flowers that adorn the branches during the month of May. The name is derived from where it was found: Siberea.

  Morphology:
This a broadleaf deciduous weeping tree which is typically derived from a multi-stemmed shrub. It can attain a mature height of 20” forming an oval shape. Leaves are pinnately compound and approximately 3” long. Each leaf consists of 8-12 leaflets each of which are 1” in length. Each leaflet is elliptic-oblong, with a noted abrupt tip. The foliage color is very pleasing bright to dark green.

The flowers are pea-like, yellow, and about 1” in length.The flowers morph to 2” long bean pods which bear 6 reddish brown seeds within. When pods open they make a popping sound.

  Adaptation:
Sun or light shade. This tree can withstand just about every type of harsh condition found across America. In the Plains states Siberian Peashrub is often planted close together to form a windbreak hedge.

  Pests:
None reported in the Northwest.
For assistance, contact Dr. Charles Brun (brunc@wsu.edu), (360) 397-6060 5701
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