Common name: Chinese plumbago
Ceratostigma willmottianum has red-tinged leaves and beautiful blue blooms in early fall at the top of the Waterfall. Most descriptions call it a shrub, but in our Garden it is more of a groundcover, never getting much taller than 30 cm (12 inches). It was discovered by E. H. Wilson in China, who named it after the funder of his expedition, plantswoman Ellen Willmott.
Flower photo: Daderot / CC0