P.A half-hardy plant which with a little protection will survive an ordinary winter. It is a useful plant, for in good soil and with liberalit will grow rapidly and flower freely during the summer, either in cool house or open. There are two varieties: , with purple bell-shaped , and C. scandens alba, with white . should be sown in early spring, in gentle heat, the potted off as soon as they will bear it, hardened off, and planted out in June. Often treated as a half-hardy .