(Black Dan-shen) Growing into a basal rosette of leaves measuring up to 3 feet across, Salvia przewalskii 'CC5795' is known for its handsome foliage and deep purple, almost black flowers.
In summer, tall spikes of flowers rise above the large, wrinkled leaves, which are yellow-green and have darkly pigmented petioles.
The scientific name of this species honors Nikolay Przhevalsky, a Polish-Russian geographer whose 19th century explorations of Asia increased knowledge about the continent's plants and wildlife. This sage is a traditional medicinal herb from the mountains of Central China. Its therapeutic herbal uses are similar to those of Salvia miltiorrhiza, which is commonly known as Dan-shen.
This variety was collected by British plant explorer Chris Chadwell at Solu Khumbu, Nepal at 12,700′. This is a hardy perennial that does best in climates with distinct seasons.
This tough sage does best in partial shade in USDA Zones 5 to 9. It grows slowly, but eventually reaches 24 to 48 inches tall and up to 36 inches wide. Although this woodland plant only needs average watering that is based on local conditions, it also handles damp spots. It can be grown as an accent, container plant or part of a perennial border.
Highly recommended.