Calliandra haematocephala is commonly called Red Powder Puff. A member of the mimosa family, it has 140 different species with red, pink, white, and a pink/white bloom. From Borneo, it is considered winter hardy in USDA Zones 9-11.
It prefers moist, fertile soil but can tolerate poor soil. Plant it in full sun. In cold climates, it can be grown in containers and moved into a protected environment for the winter.
It is a critter magnet of epic proportions. In the summer, it is covered with bees, butterflies, dirt dobbers, grasshoppers, hummingbirds, all kinds of moths and skippers plus other flying critters I can’t identify.
The Powder Puff blooms until the first freeze. In Zones 10 and 11, it may be evergreen but in Zone 9a, it is not evergreen. Whether you cover it or not, the leaves freeze and turn brown. I cut it back to 4-inch stubs after the winter. It loves humidity and quickly returns to being a 3 or 4-foot shrub.