Ceanothus thyrsiflorus 'Cool Blue' California Lilac is a compact evergreen shrub featuring an upright, mounding to spreading growth habit. Its dark green leaves are edged with broad, irregular silvery margins that beautifully frame the delicate light blue flowers appearing in spring. Ideal for mass planting, this shrub also works well as a low barrier, a standout specimen, or an accent in rock gardens and containers.