This evergreen twining climber is a close relative to the runner bean grown for its pendants of twisted flowers like coiled snail shells up to 5cm 4023441 across the fascinating summer flowers are followed by cylindrical green fruits in late autumn requiring a minimum temperature of 15c 4059f41 vigna is best grown in a heated greenhouse or conservatory alternatively grow in patio containers that can be moved indoors for the winter height 6m 40203941 spread