Reishi (Ganoderma lucidum), known in China as lingzhi, is the "mushroom of immortality" — a glossy, varnished red bracket fungus used in East Asian medicine for over two thousand years.
Coming soon. Subscribe to the newsletter to get notified when this video drops.
Reishi (Ganoderma lucidum), known in China as lingzhi, is the "mushroom of immortality" — a glossy, varnished red bracket fungus used in East Asian medicine for over two thousand years. It is far too tough and bitter to eat as food; instead it is grown for teas, tinctures, and extracts. Reishi is one of the easier medicinal mushrooms to cultivate at home, and growing it produces a strikingly beautiful, lacquered specimen.
A kidney- or fan-shaped bracket with a hard, woody texture and a glossy surface that looks varnished, banded in red, orange, and chestnut tones with a pale growing edge. Underside is white with tiny pores. Grown in high carbon dioxide it forms strange antler-like branches instead of a flat shelf.
A wood-rotting fungus of dead and dying hardwoods, especially oak, across warm temperate and subtropical regions worldwide, fruiting in summer and autumn.
Reishi is grown on sterilised supplemented hardwood sawdust blocks or on logs. It colonises readily and fruits over several weeks. Conditions shape the form: good fresh air gives the classic flat varnished conk; deliberately high carbon dioxide gives ornamental "antler" reishi. After harvest the bracket is dried and used for tea and extracts.
Indirect light is needed to develop the rich red varnished colour and proper conk shape.
High humidity (85–95%) during the growth of the bracket; reishi is grown slowly and steadily over weeks.
Warm-loving — grows best at 24–30°C. Substrate: sterilised supplemented hardwood sawdust or hardwood logs.
Reishi is not a culinary mushroom — it is woody and intensely bitter. It is used by simmering dried slices into a long-brewed tea or decoction, or processed into tinctures, powders, and capsules. The bitterness is part of its traditional character.
Reishi is among the most studied medicinal mushrooms, rich in beta-glucans and triterpenes researched for immune modulation, stress, sleep, and general wellbeing. It is taken as a supplement, not a food, and anyone on medication should check for interactions before regular use.
Pros
Cons
Not ideal for those wanting a mushroom for the dinner plate.
Can I eat reishi? Not as food — it is too tough and bitter. It is brewed into tea or processed into extracts.
Why did mine grow antlers? High carbon dioxide produces antler-form reishi. For a flat conk, give it more fresh air; both forms are usable.
Is reishi safe? Generally well tolerated as a tea or supplement, but check for interactions if you take medication, especially blood thinners.