Cacti and succulents, Perennials
Most aeoniums are native to the Canary Islands. Their fleshy leaves are held in rosettes at branch tips. After several years, the rosettes may produce a single large flower stalk in spring or summer; branches that have flowered die. These cool-season growers go dormant in summer to save water. During dormancy, they may appear sick and lose leaves—but when the weather cools and the plants get a little water, they perk up and regrow leaves.
Plant in well-drained soil; cut back on irrigation in summer. With age, most aeoniums grow leggy. To encourage branching, cut back branches several inches below rosettes anytime except during summer dormancy. Rosettes tend to be smaller after growing out from pruning. Cuttings are easily rooted: let dry for a few days, then plant in sandy soil kept barely moist until new growth appears.
Grows to 3 ft. tall and wide. Each branch tip carries a 6–8-in.-wide rosette of bright green, fleshy leaves. Yellow flowers in long clusters. ‘Atropurpureum’, with magenta-and-green rosettes, is more striking and more widely grown than the species. Hybrid ‘Zwartkop’, sometimes called black rose, has very dark purple (nearly black) rosettes up to 10 in. across; it can reach 5 ft. tall.
From New Zealand. Grows to 1 ft. high and 2 ft. wide, with narrow dark green leaves. Flowers are white...
This California native from the Channel Islands has finely cut, silvery foliage similar to dusty mille...
Grows to 20–80 ft. tall and wide. Slim blue-green leaves turn bronze in winter. Bark is iron-bla...