Siberian peashrub, Caragana arborescens, is an exceptionally tough, deciduous shrub or small tree that's ideal for hard-to-plant exposed locations or windbreaks. The plant develops attractive pealike foliage and yellow flowers in late spring. In late summer, the yellow blooms form slender brown seedpods. Siberian peashrub has sharp, thorny branches and can become weedy if you allow the seedpods to mature and fall to the ground.
Like many other plants in the pea family, Siberian peashrub can add nitrogen to the soil, thanks to a beneficial relationship the plant has with various microorganisms in the ground. Siberian peashrub is also attractive to birds, which eat the seeds and nest in the branches.