An upright form of B. davidii ‘Dartmoor’, B. ‘Greenways River Dart’ is distinguished by its branched terminal lilac blue flowers which appear slightly earlier than B. ‘Dartmoor’.
Several years ago on a hot summer’s day it was covered in Painted Lady butterflies.
A chance seedling found by Roger Clark, former head gardener at Greenways, the home of novelist Agatha Christie. Greenways is situated on the river Dart near Galmpton in Devon, England hence the name.