A hardy herbaceous perennial relative of the familiar cup-and-saucer vine, C.scandens. Having white flowers, it's not as spectacular as its tender purple-flowered relative but still a lovely thing. I grow it in a sunny spot on a well-drained but rich soil, with a thick strawy mulch in winter just to be on the safe side. It dies down completely in winter.
Once it gets going it's a big plant capable of covering quite a large area in a single season so make sure you put it somewhere where it can roam free. It tends to start late and flower late too so provide warmth and shelter.
Despite the bindweed-like roots it does not spread vigorously and can be slow to propagate. As a result I never have enough of these to satisfy demand so please enquire.