RHODOCHITON ATROSANGUINEUS

I went mooching at a favourite garden place today and saw this climber growing in a large container amongst other plants: Rhodochiton atrosanguineus.  It's flowers are really peculiar and it has a leaf and twining habit which reminded me of the common bindweed or Convolvus arvensis but it isn't a bindweed and won't, or shouldn't, get a throttle-hold on your beloved plants. 

Rhodochiton atrosanguineus



Rhodochiton atrosanguineus

Apparently, it is a half-hardy plant from Mexico and is grown as an annual in the UK.  It flowers from June to October.  The flower is deep purple and grows from a cup-shaped deep pink calyx.  It has received the Royal Horticultural Society AGM award (Award of Garden Merit).  It likes full sun, a light, moist, well-drained soil, and achieves a height of 300cm (10ft) and spread of 60cm (2ft).