Berberis x ottawensis f purpurea 39superba39 will turn your garden all the colours of the rainbow when this hardy shrub39s deciduous leaves first appear they provide a striking purple backdrop to the yellow flowers it produces in april red is the next shade to be introduced to the palette for it adorns the eye45catching berries that succeed the plant39s blooms as the season draws to a close the barberry39s foliage takes on a similar golden45red tone before surrenderin