This is a lovely plant called Calceolaria
integrifolia. Calceolarias are often thought of as tender, but this is a hardy one (except maybe in very exposed locations). Throughout the summer and into
autumn, it produces clusters of bright yellow puffy flowers. It is evergreen, although stems can get damaged in very bad weather over the winter. I usually cut
mine back quite hard in spring, which encourages lots of new growth that will flower later on, as well as improving the shape of the plant, which can be rather
sprawling. It's very easy to propagate from cuttings in summer too!