January 2004 - Caragana arborescens is commonly referred to as Siberian Peashrub or Caragana. This hardy shrub is a native of Siberia. In the past, Caragana was a popular shelterbelt species and it is now grown as an ornamental shrub for the urban gardener in Canada. Caragana is drought and salt tolerant and thrives in relatively poor or sandy, well drained soil.