About Colquhounia coccinea Wall.
Colquhounia coccinea Wall. is a flowering plant species belonging to the mint family, Lamiaceae. It is commonly called scarlet-flowered colquhounia or Himalayan mint shrub. This plant is native to China, Bhutan, Nepal, Myanmar, India, and Thailand.
It grows as an evergreen or semi-evergreen shrub, reaching 2.5 meters (8.2 feet) in both height and width. Its leaves are aromatic, and have a felt-like, tomentose covering on their undersides. In late summer, it produces spikes of red or deep orange flowers that have yellow interiors. In its native range, it grows in habitats including slopes, stony grassy hillsides, thickets, and river valleys.
It is not fully hardy, rated RHS H4, and needs a sheltered spot in full sun, with protection from winter wet. The Latin specific epithet coccinea references the red color of the plant's flowers.
