Sorbaria 'Sem' is a compact, deciduous shrub. Its main interest comes from its foliage, changing colour through the seasons: starting yellow-green flushed with pink in Spring, green in the summer and reeder in Autumn again.. Flowers are borne in stiff, erect, rather narrow panicles of small white flowers in summer. Best grown in Full sun to partial shade. Max Height and Spread: 1.5 x 1.5 m. RHS Award of Garden Merit