Rhodiola rosea Seeds | Golden Root
LATIN NAME: Rhodiola rosea
COMMON NAME: Rhodiola, Golden Root
Plant Profile
Rhodiola rosea is a circumpolar plant of rock ledges, river gravel and alpine turf, found from Scandinavia and Greenland across the Urals to the Altai, the Tian Shan and the mountains of western China. It grows between 1,500 and 5,000 metres, usually where snow lies late and drainage is immediate.
The plant is a clump of thick, blue-green leaves on stems fifteen to forty centimetres tall, with a dense head of yellow-green flowers that are male on one plant and female on another. Cut the rhizome and it smells of rose petals, which is where the specific name comes from. The leaves are toothed and fleshy, and the whole clump seldom exceeds the height of a boot.
Science & Biotechnology
Two groups of compounds carry the trade. Cinnamyl alcohol glycosides, rosavin, rosarin and rosin, are used to standardise extracts, while salidroside, a tyrosol glucoside, is the compound most studied in the laboratory. Russian work from the 1960s onwards classified the plant as an adaptogen, a label that has never been given a regulatory definition.
Human evidence is thin and uneven. A Swedish trial of a standardised extract in stress-related fatigue reported improvement in burnout scores, and several smaller studies followed, but sample sizes were small and several were industry-funded. Mild inhibition of monoamine oxidase has been shown in vitro, and there is a plausible route for interactions with drugs metabolised by CYP2C9 and CYP3A4. Wild populations in the Altai have been heavily dug. Salidroside is also being studied as a protectant in hypoxia models, again without human data.
Uses & Benefits
Root is taken as a capsule or a decoction, usually 200 to 600 milligrams of a extract standardised to three per cent rosavins, in the morning rather than the evening. Traditional use in Siberia and Central Asia was for fatigue, altitude and low mood.
Side effects reported in trials are mild: dizziness, dry mouth, an odd spaced feeling in the first days. It is avoided in bipolar disorder because of the monoamine oxidase activity, and it is not used in pregnancy. Because wild roots are slow-growing, cultivated material from Finland and Canada is preferable on principle.
Growing from Seed
Seed is dust-fine and must be sown on the surface; it needs light to germinate and a month of cold to break dormancy, with rates of forty to sixty per cent at best. A pinch of seed on a gritty, lime-rich mix in late winter is more reliable than spring sowing.
Division is faster. Lift a clump in early spring, break the rhizome into sections with two or three buds, and replant just below the surface in gravelly soil at pH 6 to 7. Plants need cool roots and full sun; wet winter ground rots the crown. Expect three to four years before the rhizome is worth lifting.
Our Take
A slow, handsome alpine whose reputation outruns its evidence; grow it for the rockery first and treat the root as a bonus.
Related Reading
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