Kaffir lily is also commonly called clivia. As a houseplant it usually blooms in winter with clusters of up to 20 reddish orange or yellow tubular flowers. Clivia blooms only when it has been exposed to cool, dry conditions, so give it lower temperatures in winter and keep it on the dry side. With its deep green straplike leaves aligned in a single plane, the plant is attractive even when not in bloom.