Cobaea scandens is an impressive climber and is one of the fastest-growing and most trouble-free vines you will ever grow. In its native Mexico it makes a woody, evergreen perennial. Here it grows 10ft or so over the summer and, from summer until the first frosts, produces very large and distinctive bright white flowers. The bell-shaped flowers are up to 2 inches in diameter and have a ruff of bracts - hence its common names, cup and saucer plant or cathedral bells. Blooms are a wonderful addition to late season bouquets and also look great displayed en masse or floated in shallow bowls.
It will behave as a perennial if kept indoors in winter at about 45F. In a very mild winter plants may survive and remain virtually evergreen. Cobaea scandens can be grown in a large pot (at least in diameter) as long as suitable support is provided for it to cling to. They will overwinter provided that the temperature at night does not dip below freezing.
Other Names: Stunning Vine, white flowering vine, cup-and-saucer vine, cathedral bells, Mexican ivy, monastery bells