''Salvia castanea'' is a herbaceous

perennial plant A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

discovered in the Yunnan Valley in China in 1904 by plant collector

George Forrest George Forrest may refer to: *G. Topham Forrest (George Topham Forrest, 1872–1945), principal architect for the London County Council *George Forrest (author) (1915–1999), American author and musician *George Forrest (botanist) (1873–1932), S ...

. It also grows in

Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is mai ...

Bhutan Bhutan (; dz, འབྲུག་ཡུལ་, Druk Yul ), officially the Kingdom of Bhutan,), is a landlocked country in South Asia. It is situated in the Eastern Himalayas, between China in the north and India in the south. A mountainous ...

, and

Tibet Tibet (; ''Böd''; ) is a region in East Asia, covering much of the Tibetan Plateau and spanning about . It is the traditional homeland of the Tibetan people. Also resident on the plateau are some other ethnic groups such as Monpa people, ...

. The plants used in horticulture today likely came from seed collected from a plant at 14,000 ft in Nepal, at the base of Mt. Everest. It grows 3 ft tall in the wild, and 1–2 feet in cultivation in Europe and the U.S. The few 1.0–1.5 in flowers grow in whorls on an inflorescence about 1 ft long. The name ''castanea'', which means 'chestnut colored', refers to the purplish-maroon flowers

Notes

castanea The chestnuts are the deciduous trees and shrubs in the genus ''Castanea'', in the beech family Fagaceae. They are native to temperate regions of the Northern Hemisphere. The name also refers to the edible nut (fruit), nuts they produce. Th ...

Flora of Nepal Flora of China Flora of Bhutan Flora of Tibet {{Salvia-stub