Cobaea scandens is
often grown as an annual but in frost free, or nearly frost free locations
it grows quite nicely as a long lived vine. The soft tendrils of
Cobaea scandens are easily pulled out of the neighboring shrubbery, though
it will travel quite a distance if left unchecked. The dark purple
blossoms of Cobaea scandens are more than 2" across and are produced
all year long unless the plants are damaged. I have had good luck
with these in lightly shaded sections of the garden. Cobaea scandens
has low to moderate water needs.
High
resolution images of
Cobaea scandens are available.