

At a glance
- Jan
- Feb
- Mar
- Apr
- May
- Jun, shaded
- Jul, shaded
- Aug, shaded
- Sep, shaded
- Oct
- Nov
- Dec
Summary
Salvia castanea is a herbaceous perennial plant discovered in the Yunnan Valley in China in 1904 by plant collector George Forrest. It also grows in Nepal, Bhutan, and Tibet. 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. More on Wikipedia ›
Quoted from Wikipedia, "Salvia castanea", CC BY-SA 4.0.
About the genus · Salvia
Salvia is the largest genus of plants in the sage family Lamiaceae, with just under 1,000 species of shrubs, herbaceous perennials, and annuals. Within the Lamiaceae, Salvia is part of the tribe Mentheae within the subfamily Nepetoideae. One of several genera commonly referred to as sage, it includes two widely used herbs, Salvia officinalis and Salvia rosmarinus.
Quoted from Wikipedia, "Salvia", CC BY-SA 4.0.
Cultivation
Seasons
The rain rule reads a summer growing season: 70% of the median year's rain (923 mm of 1,241 mm) falls in June to September, warmer than the year (wet-season mean 10.8 °C against a yearly mean of 2.7 °C). Months are the habitat's, northern hemisphere; shifted six months for a southern-hemisphere collection: December to March.
Rain
1,241 mm in the median year at the habitat, 923 mm of it June to September. Wettest month July at 265 mm, driest month December at 6 mm. Across the grid cells of the range the year's total runs 764 mm to 1,906 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 1,337 mm, is the year's rain at the top of the page; the 1,241 mm here is the median year's, the twelve monthly medians added, which the rain rule reads. Habitat calendar, northern hemisphere; median year across the grid cells of the range, CHELSA.
Light
Open sky over the habitat: 23 to 42 mol/m²/day across the year (daily light integral, median year across the grid cells of the range, CHELSA; the lowest 10th-percentile month across the cells is 20, the highest 90th-percentile month 49).
Warmth and air
Monthly means: the coldest month's mean nightly low -16.2 °C in January (across the grid cells of the range -19.3 °C to -3.4 °C), the warmest month's mean daily high 15.0 °C in July and August (median year across the grid cells of the range, CHELSA). Cold floor: none read. The nearest figure is -16.2 °C, the coldest month's mean nightly low, January, in the median year (CHELSA); a month's mean of its nightly lows is warmer than the nights a floor is read from. The daily extremes were read at a weather cell whose ground is too far above or below the typical spot to correct for, and are not used.
Relative humidity at the habitat: 58 to 69% across the year (monthly means, median year across the grid cells of the range, CHELSA). A figure about the air, saying nothing about how the plant takes water.
How this section is made
Each card states this species' habitat figures with their sources, and what two fixed rules read from them; nothing here says what the plant does, wants or tolerates. The rules · the terms.
Seasons. Read from the median year of CHELSA monthly rainfall and mean temperature across the grid cells of the range: the rain rule takes the smallest set of months carrying 70% of the rain and calls it winter when its mean is more than half a degree below the year's, summer when more than that above, and neither in between; the temperature rule, used only under 120 mm, names the cooler six months when they are at least a degree cooler than the other six. Months are shifted for the other hemisphere only where the temperature curve moves 4 °C or more and the habitat lies 10° or more from the equator. A reading of the curves, not an observation of the plant.
Rain. CHELSA monthly precipitation, median year across the grid cells of the range. The rain that falls where the species is recorded; nothing about how the plant takes water.
Light. CHELSA shortwave radiation at each envelope cell, a daily-mean flux taken to a daily total and converted at 2.07 mol of PAR per MJ. The sky over the habitat, measured; what reaches a plant under a rock, a shrub or a shade cloth is not.
Temperature. CHELSA monthly means, median year across the grid cells of the range. No cold floor is read without a daily extremes series; the coldest month's mean nightly low named in its sentence is not one. Not a measured survival limit for any plant in a pot.
Humidity. CHELSA relative humidity, median year across the grid cells of the range.
Climate across the habitat
Habitat months, northern hemisphere
Mean daily high from -3 °C in Jan to 15 °C in Jul and Aug; mean nightly low from -16 °C in Jan to 8 °C in Jul and Aug. The cold quarter, Dec to Feb, is the three months around the coldest month's mean nightly low. 1,241 mm of rain in the median year (the twelve monthly medians added), the wettest month Jul. The bands show the 10th to 90th percentile across 13 habitat cells. Beneath: daily light integral and relative humidity through the year, each on its own scale.
Figures by month
| Figure | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | -3 / -6–8 | -2 / -6–10 | 1 / -3–13 | 5 / 1–16 | 9 / 5–18 | 13 / 9–19 | 15 / 11–19 | 15 / 11–19 | 13 / 9–17 | 8 / 4–14 | 2 / -1–11 | -1 / -5–8 |
| Night °C | -16 / -19–-3 | -12 / -17–-2 | -7 / -12–1 | -2 / -7–4 | 1 / -3–8 | 6 / 2–11 | 8 / 4–12 | 8 / 4–11 | 6 / 1–10 | 0 / -5–7 | -9 / -13–1 | -13 / -18–-2 |
| Rain mm | 10 / 5–20 | 16 / 6–44 | 39 / 15–70 | 58 / 25–105 | 101 / 59–151 | 234 / 140–290 | 265 / 178–468 | 226 / 154–342 | 198 / 118–253 | 76 / 42–115 | 12 / 6–25 | 6 / 4–15 |
| DLI | 26 / 23–29 | 31 / 27–35 | 37 / 34–43 | 42 / 37–49 | 39 / 35–46 | 34 / 30–40 | 32 / 29–37 | 31 / 30–36 | 27 / 25–33 | 26 / 22–32 | 24 / 22–28 | 23 / 20–26 |
| RH % | 58 / 52–65 | 60 / 51–64 | 60 / 52–65 | 61 / 54–66 | 63 / 57–67 | 66 / 62–71 | 69 / 65–75 | 68 / 65–74 | 68 / 65–72 | 64 / 60–67 | 61 / 56–65 | 60 / 53–65 |
The daily extremes were not used: the record low, -15.5 °C, is warmer than the coldest month's mean nightly low across the range, -16.2 °C, which no night series of the habitat can give. So no cold floor is read for this species, and the coldest month's mean nightly low is not taken as one. What that cell gave, so corrected, over 44 years: absolute minimum -15.5 °C, 1st-percentile night -11.0 °C.
How this section is made
Natural habitat
How this section is made
Photographs
Photographs: author not stated, no rights reserved · CC0; (c) Wang.QG, some rights reserved (CC BY); peganum from Henfield, England, CC BY-SA 2.0, via Wikimedia Commons.
Related
Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.
Salvia przewalskii Ganzi Danshen Photo: CC BY, Jiao Sun (孙娇) Primula chungensis Primulaceae
Picea likiangensis Likiang spruce Photo: CC BY, Ryan McMinds
Rhododendron wardii Ericaceae Photo: CC BY, Morten Ross
Paeonia ludlowii Paeoniaceae Photo: CC BY, Wang.QGOther Salvia 225 in the reference
Salvia abrotanoides Caspian Sage Photo: CC BY, Станислав Чуванов
Salvia adenophora Oaxaca Red Sage Photo: CC BY-SA, Eugenio Padilla
Salvia aethiopis African sage Photo: CC BY, Aleksei Baushev
Salvia africana African Blue Sage Photo: CC BY, Ryan Rattray
Salvia amethystina Lamiaceae Photo: CC BY, Nicolás Baresch Uribe
Salvia amplexicaulis Lamiaceae Photo: CC BY, Zac Peterson
Salvia angustiarum Lamiaceae Photo: CC0, author not stated
Salvia apiana White sage Photo: CC BY, Trevor Harding
Salvia argentea Silver sage Photo: CC BY-SA, Jeanette Clarke
Salvia arizonica Desert indigo sage Photo: CC BY, Sam Kieschnick Salvia aucheri Waving Sage
Salvia aurea Brown Sage Photo: CC BY, jk6000 all 226 ›Names & registers
Also known as Salvia castanea f. castanea; Salvia castanea f. glabrescens; Salvia castanea f. pubescens; Salvia castanea f. tomentosa. (GBIF Backbone)
The record
Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →
Where this page came from built 2026-10-22
gbif.species answeredasked 2026-10-22gbif.synonyms answeredasked 2026-10-22gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22wcvp.distribution answeredas of 2026-06-04gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 1 record within 1 km of a botanic garden, herbarium or zoo left out (1 at a botanic garden or arboretum; Wikidata's list)climate answeredasked 2026-10-22climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 29.50_95.000, lapse-corrected +117 m at 6.5 °C/km; read, and set aside: the record low, -15.5 °C, is warmer than the coldest month's mean nightly low across the range, -16.2 °C, which no night series of the habitat can give, so no cold floor is shownwikidata answeredasked 2026-10-22wikipedia answeredasked 2026-10-22inat.photos.wild answeredasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22inat.photos.cultivated not askedgbif.media answeredasked 2026-10-22none of the photographs on this page is credited to GBIF: those shown are other sources', and GBIF's were the same photographs or were set aside by the photograph rulescommons answeredasked 2026-10-22openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshotEvery source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 15 datasets via GBIF.org; each carries its own licence.


