Caragana arborescens

Siberian pea shrub. A large leguminous shrub from Siberia, reaching 6 m (20 ft) high and growing some 40 cm per year. The seeds, produced in numerous pods following yellow flowers, are edible when cooked (having a pea flavour), as are the young pods. A fibre is obtained from the bark. Bees visit the flowers and the species is a good fixer of nitrogen. A very hardy hedging and windbreak tree, hardy to -40°C.