There is something about the rays of a daisylike bloom that provide a warmth all their own. And so it is with Osteospermum ‘Sunset Orange.’ Also called African daisy, South African daisy, Cape daisy and blue-eyed daisy, osteospermum is native to Africa. The species are half-hardy perennials or subshrubs, but not hardy here in Maine. A “newer” plant found in the greenhouse trade in the past few decades, osteospermum grows well in full sun, and if kept watered and fertilized, they should be in continuous bloom all summer long. Deadheading is not usually needed because they don’t readily set seed. If they get too dry, however, the plant will abort the flower buds and go into “sleep mode,” a state that it will not easily come out of with new flowers.