Jill, the plant in the second picture has to be divided now or it may not survive, but the first is just coming into flower so I’ll leave it until this flush of flowering is over. You can cut them with a carving knife, they don’t mind. I have two little self-seedings from the first plant.
Pamela, no they don’t like to die right down, they stay green all year with summer irrigation and flower from autumn into the winter. If you plant now they should flower for you soon.