Lupinus arboreus

The Lupinus arboreus is a shrub with a bushy habit and silky shoots. From May to July, terminal spikes of 15 to 30 cm (6 to 12in) long appear, composed of flowers similar to those of peas. The flowers are pale yellow and measure 1 to 2 cm (1in) long. It is an evergreen plant that spreads rapidly without aggressiveness. The flowers are fragrant.

Originally from the coasts of California in the United States, this perennial has beautiful gray-green foliage that brightens shaded areas. This foliage is semi-persistent and is mainly composed of palmate basal leaves, highly divided into 5 to 12 pointed leaflets, covered with silky hairs on the underside. The leaves measure 3 to 6 cm (1 to 2in) long. At maturity, the plant can reach 2 m (7ft) tall.

The Tree Lupin is a good ground cover. It grows in dry meadows, hills, open forests, coastal strips, cliffs, as well as riverbanks. It is an excellent plant that adds a beautiful effect to perennial beds and flower beds. It also thrives when planted individually. It is very vigorous and resistant to diseases.