Houseleek tree or tree Arboreum, Aeonium arboreum is an evergreen succulent with rosettes of shiny, spoon-shaped, bright green leaves at the ends of thick branches with bright golden clusters of star-shaped flowers. As with most succulents, does not tolerate extended periods of frost so make sure that it is in a warm, protected spot. They also make good plants for a sunny indoor spot or a conservatory/greenhouse.
Late winter-spring
Full sun along the coast or morning sun in inland areas; indoors provide bright indirect light by a south facing window
Allow soil to dry before watering and when dormant in summer, decrease watering to once a month
Keep compact growth by pruning back leggy branches
All zones indoors
Outdoors, hardy in zones 10 to 12; all zones indoors
Plant from containers in spring or summer or where winters are mild, in fall
Well-draining, commercial cactus mix
3 ft. x as wide