The Siberian pea tree is a very hardy shrub/tree that grows almost anywhere, although it prefers very dry sandy soil. The maximum height of Caragana Arborescens is approximately six metres. Pruning in winter. The Siberian pea tree does not grow. How to Prune Caragana. Commonly called Siberian peashrub, Caragana arborescens is a perennial species of leguminous shrub grown for its airy. caragana / peashrub Caragana arborescens, commonly called Siberian pea tree, is a large, rounded, multi-stemmed, deciduous shrub with upright branching that grows to ’ tall and to ’ shrublop.buzz is native to Siberia and Manchuria.
It features pinnately compound bright green leaves (to 3” long), each with 4 to 6 pairs of obovate to elliptic-oblong leaflets (to 1”). Siberian peashrub is a drought-tolerant, erect shrub with an oval shape (taller than broad). Bright, small yellow flowers are pea-shaped and followed by a fruit that resembles a short, narrow peapod. The compound leaves are light green in color with short stiff spines at the nodes.
The bark is shiny green. Its thorns can be quite small or large.