Most Ceanothus are native to the Americas, mainly California however the delilianus varieties were the result of work by French breeders during the 19th century. Ceanothus delilianus Gloire de Versaille is the most popular of the deciduous Ceanothus. A winner of the RHS Award of Garden Merit, it is much hardier than the evergreen varieties and flowers later and over a longer period. Large panicles of powder blue flowers are produced from June to September. Easy to grow in a sunny location in most well drained soils. Does not do well in chalky soil. Use in the garden border, trained against a wall, or on the patio in containers. In containers use a good quality, free draining compost and add a controlled release fertiliser to the compost, or feed regularly to ensure the plant performs to its best. Prune in early spring to encourage new growth and more prolific flowering.