Ceanothus 'Concha' Patio TreeCeanothus 'Concha' Trees are regarded as one of the best California Lilacs for small garden, patio or border displays. These evergreen ornamental trees will produce beautiful light blue and white flowers in late Spring Summer, opening from reddish purple buds. As the tree settles and develops, look out for bees, butterflies and other pollinating wildlife due to their strong fragrant scent. These dense and bushy trees will require annual pruning to