Skip to content
Herbs & Cultures

From plant to use

Decoction

Simmering roots, bark and seeds so they release their flavour and compounds.

Level
Easy
Ratio
About 1 tablespoon of dried, coarsely cut material per 300–500 ml of cold water.
Time
Bring to the boil and simmer gently for 15–30 minutes with the lid on. Mushrooms often longer.
Shelf life
Covered in the fridge for 1–2 days.

Hard plant parts give up little in a short infusion. That is why many traditions gently boil roots, bark, seeds and berries: a decoction. Think of ginger root, cinnamon bark and the herbal formulas of Ayurveda and traditional Chinese medicine.

Suited to

Roots, rhizomes, bark, seeds, dried berries and mushrooms.

Step by step

  1. Cut or crack the material coarsely to increase its surface.
  2. Put it in cold water and bring slowly to the boil.
  3. Turn the heat down, cover the pan and let it simmer gently.
  4. Strain, and top up with hot water to the original volume if you like.

Tips

  • Roots and leaves together? Simmer the roots first, then add the leaves once the heat is off and let them steep for another 5–10 minutes.
  • Soak the material in cold water for an hour beforehand for a fuller flavour.

Registry

Herbs prepared this way

Herbs on this site whose description mentions this preparation. That does not mean every herb is safe to prepare yourself: read the safety information for each one.

  • Caution

    Asia · Herb · № 745

    Sappan wood (su mu)

    Biancaea sappan (syn. Caesalpinia sappan)

    Traditionally attributed effects: lets the blood flow in menstrual pain and injury.

    Chinese medical traditions+1
  • Caution

    Asia · Herb · № 719

    Sargassum (hai zao)

    Sargassum pallidum (en S. fusiforme)

    Traditionally attributed effects: softens hardenings from phlegm-fire such as goitre and swollen glands; drains fluid.

    Chinese medical traditions
  • Caution

    North America · Herb · № 633

    Sassafras

    Sassafras albidum

    Traditionally attributed effects: expels wind, dampness and cold in joint complaints, also when heat is involved, moves the blood in stasis after trauma or in absent menstruation, and is used for itchy skin.

    Indigenous healing traditions of North America+4
  • Caution

    Asia · Herb · № 666

    Scouring rush (mu zei)

    Equisetum hyemale

    Traditionally attributed effects: expels wind-heat around the eyes, stops bleeding and is diuretic.

    Chinese medical traditions+1
  • Caution

    Europe · Herb · № 91

    White willow

    Salix alba

    The bark contains salicin, which the body partly converts to salicylic acid. There are hints of a moderate effect on low back pain and joint pain.

    Greco-Roman medicine+3Folklore
  • Caution

    Asia · Herb · № 592

    Schisandra

    Schisandra chinensis

    Traditionally attributed effects: tonic, astringent, stimulating, adaptogen; supports exhausted adrenals (fatigue), promotes sleep and well-being, protects the liver.

    Chinese medical traditions+3
  • Caution

    Asia · Herb · № 657

    Schizonepeta (jing jie)

    Schizonepeta tenuifolia

    Traditionally attributed effects: opens the surface in colds (warm or cool, depending on the combination), helps rashes come out and, charred, stops bleeding.

    Chinese medical traditions+1
  • Caution

    Asia · Herb · № 507

    East Indian screw tree

    Helicteres isora

    Traditionally attributed effects: expectorant, soothing, mildly astringent, stomachic; for colic, flatulence, diarrhoea, chronic dysentery, diabetes, ear infection, snake bites.

    Ayurveda+1
  • Caution

    Asia · Herb · № 470

    Sebesten plum

    Cordia myxa

    Traditionally attributed effects: fruit soothing, expectorant, diuretic, mildly laxative; bark mildly astringent and tonic; for cough and chest diseases, bile complaints, abdominal cramps, indigestion, fever, ulcers, snake bites.

    Ayurveda+1
  • Caution

    Africa · Herb · № 117

    Senna

    Senna alexandrina

    Leaves and pods contain sennosides, a stimulant laxative that works for short-term constipation. It is used in modern over-the-counter laxatives.

    Ancient Egyptian medicine+5
  • Caution

    Africa · Food · № 356

    Sesame

    Sesamum indicum

    Traditionally attributed effects: soothing, softens the skin, diuretic, promotes menstruation and milk flow, laxative; leaves for respiratory complaints, diarrhoea and dysentery in children, bladder catarrh; seeds for bleeding haemorrhoids, absent or painful menstruation.

    Ancient Egyptian medicine+3Folklore
  • Caution

    North America · Food · № 935

    Shagbark hickory

    Carya ovata

    A nut tree of the walnut family, with bark that peels away in long strips. The nuts are rich and sweet.

    Haudenosaunee medicine
  • Caution

    Asia · Herb · № 494

    Shankhpushpi

    Evolvulus alsinoides

    Traditionally attributed effects: bitter tonic, cleansing, fever-reducing, expels worms, anti-inflammatory; for fever, nervous weakness, memory loss, dysentery, diarrhoea and indigestion (with tulsi), chronic bronchitis and asthma.

    Ayurveda
  • Caution

    Asia · Herb · № 122

    Shatavari

    Asparagus racemosus

    In Ayurveda an important rejuvenating remedy for women, used for breastfeeding and stomach complaints. Studies are small and of variable quality.

    Ayurveda+1
  • Caution

    Asia · Mushroom · № 145

    Shiitake

    Lentinula edodes

    An edible mushroom. Lentinan from shiitake is researched and used in oncology in Japan; there is little evidence for ordinary shiitake as an 'immune booster'.

    Chinese medical traditions+3
  • Caution

    Asia · Herb · № 367

    Siberian ginseng

    Eleutherococcus senticosus

    Traditionally attributed effects: adaptogen, increases interferon production; especially for herpes simplex, strengthens the immune system against colds and flu; further for high blood pressure, kidney disease, diabetes, insomnia, arthritis.

    Chinese medical traditions+1
  • Caution

    Asia · Herb · № 749

    Siberian Solomon's seal (huang jing)

    Polygonatum sibiricum

    Traditionally attributed effects: strengthens spleen and kidneys, moistens the lungs and replenishes the essence.

    Chinese medical traditions+1
  • Caution

    Asia · Herb · № 644

    Szechuan lovage (chuan xiong)

    Ligusticum chuanxiong (syn. L. striatum)

    Traditionally attributed effects: promotes circulation, helps with menstrual complaints and as a restorative tonic after childbirth, and is said to lower high blood pressure; warming.

    Chinese medical traditions+2
  • Caution

    Asia · Herb · № 313

    Dwarf lilyturf (mai men dong)

    Ophiopogon japonicus

    Traditionally attributed effects: promotes the secretion of body fluids, tonic, calming, cough-suppressing, lowers blood sugar, antibacterial.

    Chinese medical traditions+3
  • Caution

    North America · Herb · № 295

    Fringe tree

    Chionanthus virginicus

    Traditionally attributed effects: promotes bile, stimulates the liver, tonic, diuretic.

    Eclectic medicine+1
  • Caution

    Asia · Herb · № 680

    Sophora root (ku shen)

    Sophora flavescens

    Traditionally attributed effects: drains damp heat in itchy skin, discharge and dysentery; externally as a wash.

    Chinese medical traditions+1
  • Caution

    Asia · Herb · № 742

    Spatholobus stem (ji xue teng)

    Spatholobus suberectus (syn. Millettia reticulata)

    Traditionally attributed effects: both moves and nourishes the blood; for weakness, numbness and painful joints.

    Chinese medical traditions
  • Caution

    Europe · Herb · № 577

    Alder buckthorn

    Frangula alnus

    Traditionally attributed effects: cleansing, laxative, antiparasitic, bitter; mild laxative without cramps, stops bleeding and helps with warts, mouthwash for gum problems, hair rinse for scalp irritation.

    Western herbal medicine
  • Caution

    Asia · Mineral · № 794

    Stalactite (e guan shi)

    Stalactitum (calciumcarbonaat)

    Traditionally attributed effects: makes lung energy descend in asthma and chronic bronchitis and promotes milk flow.

    Chinese medical traditions
  • Caution

    Asia · Herb · № 538

    Bhumyamalaki

    Phyllanthus fraternus

    Traditionally attributed effects: diuretic, astringent, cooling, laxative, bitter tonic; for oedema, gonorrhoea, urogenital diseases, jaundice, constipation, stomach ache, indigestion, dysentery, mild intermittent fever, heavy menstruation.

    Ayurveda
  • Caution

    North America · Herb · № 953

    Stoneroot

    Collinsonia canadensis

    A perennial of the mint family with lemon-scented leaves and a very hard, knobbly root. Eclectic physicians used it for piles and varicose veins; research is lacking.

    Haudenosaunee medicine+1
  • Caution

    North America · Herb · № 168

    Northern prickly ash

    Zanthoxylum americanum

    Bark and berries give a tingling, numbing feeling in the mouth; they were traditionally used for toothache, poor circulation and rheumatism. Clinical research is lacking.

    Indigenous healing traditions of North America+4
  • Caution

    Asia · Herb · № 676

    Stellaria root (yin chai hu)

    Stellaria dichotoma var. lanceolata

    Traditionally attributed effects: cools heat from yin deficiency, fever after an illness and heat in malnourished children.

    Chinese medical traditions
  • Caution

    Asia · Herb · № 724

    Stemona root (bai bu)

    Stemona sessilifolia (en S. japonica)

    Traditionally attributed effects: moistens the lungs in acute and chronic cough; externally against lice and fleas.

    Chinese medical traditions
  • Caution

    Asia · Herb · № 709

    Stephania root (han fang ji)

    Stephania tetrandra

    Traditionally attributed effects: diuretic in oedema (especially of the legs) and pain-relieving in hot, swollen joints.

    Chinese medical traditions+1
  • Caution

    Central America and the Caribbean · Herb · № 456

    Sickle senna

    Cassia tora

    Traditionally attributed effects: mildly laxative, cleansing; intestinal complaints and fever when teething, compress for gout, sciatica and joint pain; seeds for ringworm, scabies and eczema; root for snake bites.

    Ayurveda+1
  • Caution

    Asia · Herb · № 534

    Skunkvine

    Paederia foetida

    Traditionally attributed effects: diuretic, anti-inflammatory, antispasmodic; for urinary retention, bladder stones, haemorrhoids, inflamed spleen, diarrhoea in children, rheumatism and stiff joints, abdomen bloated by gas.

    Ayurveda+1
  • Caution

    Asia · Herb · № 664

    Beach vitex fruit (man jing zi)

    Vitex rotundifolia (syn. V. trifolia)

    Traditionally attributed effects: expels wind-heat in headache and eye pain, and relieves cramps and heaviness in the limbs.

    Chinese medical traditions
  • Caution

    South America · Herb · № 164

    Suma

    Hebanthe eriantha (syn. Pfaffia paniculata)

    Sold as 'Brazilian ginseng' and an adaptogen for fatigue. There is hardly any human research.

    Herbal knowledge of the Amazon+1
  • Caution

    Asia · Mineral · № 702

    Talc (hua shi)

    Talcum (hydromagnesiumsilicaat)

    Traditionally attributed effects: cooling and soothing in painful urination and summer heat; externally drying on weeping skin.

    Chinese medical traditions
  • Caution

    Asia · Herb · № 512

    Talmakhana

    Hygrophila auriculata

    Traditionally attributed effects: root cooling, bitter tonic, diuretic, soothing; seeds diuretic and aphrodisiac; for oedema, kidney stones and urogenital complaints, jaundice, impotence and weakness, asthma.

    Ayurveda