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Blackberry, lady’s mantle and blackcurrant: three plants of the herbalist’s tea cupboard

Plants to treat diarrhea
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Loose, unsettled digestion after a rich meal, a long journey or a stressful week is one of the oldest reasons people reached for the tea caddy. Three plants turn up again and again in that context: blackberry leaf, lady’s mantle and blackcurrant. Here is what each one is, which part is used, how it is prepared, what it tastes like, and when to leave it alone.

The three plants at a glance
Item Blackberry Lady’s mantle Blackcurrant
Botanical name Rubus fruticosus Alchemilla vulgaris Ribes nigrum
Family Rosaceae Rosaceae Grossulariaceae
Part used Leaves mainly, also roots and fruit Leaves, gathered before or during flowering Berries, and buds for macerates
Forms of use Infusion, decoction of the root Infusion of dried leaves Juice, syrup, bud macerate
Harvest season Leaves late spring to midsummer; fruit late summer; roots mid-autumn Leaves early to midsummer Buds late winter to early spring; berries midsummer
Taste Dry, tea-like, slightly tart Bitter-green, markedly astringent Deeply fruity, sharp, musky

What they are credited with

  • Blackberry leaf: European hedgerow tradition has long used the leaf infusion as an astringent drink when the gut feels loose and unsettled.
  • Blackberry root: older country herbals kept a decoction of the root for the same purpose, considering it the stronger of the two preparations.
  • Blackberry fruit and leaf: both have a folk reputation as a gargle for a rough, sore throat, on account of their drying, tightening character.
  • Lady’s mantle: herbalists value the leaf for what they describe as a tonifying, tissue-tightening action on the digestive lining; it is a classic of women’s herbalism in Central Europe.
  • Blackcurrant berries: naturopathy credits the pectin in the fruit with a settling, bulk-forming effect, which is why the juice is the form usually suggested.
  • Blackcurrant buds: in the gemmotherapy tradition, the bud macerate has a reputation as an all-round spring tonic.
  • All three: traditional use is short-term and comforting, never a substitute for the fluids and salts lost during a digestive upset.
Close-up of a black currant
Blackcurrant berries carry the pectin, which is why juice is the usual form

How to use it

Blackberry leaf infusion

  • Bring water to the boil and take it off the heat.
  • Count a heaped teaspoon of dried, crumbled blackberry leaves per cup.
  • Cover and leave to infuse about ten minutes, then strain.
  • Traditionally drunk up to three times a day, for a couple of days at most.
  • It tastes like a thin, dry black tea; a slice of lemon suits it, honey softens the tannin.

Blackberry root decoction

  • Scrub and chop a small piece of root, cover with cold water.
  • Bring to the boil, simmer gently for around a quarter of an hour, then strain.
  • Stronger and browner than the leaf tea, and considerably more astringent.

Lady’s mantle infusion

  • A teaspoon of dried leaves per cup of just-boiled water.
  • Cover, infuse ten minutes, strain well.
  • Two to three cups across the day is the usual traditional pattern, kept short.
  • Frankly bitter and drying. Mint or lemon balm in the pot makes it drinkable.

Blackcurrant juice and bud macerate

  • Half a glass of unsweetened blackcurrant juice, two or three times during the day.
  • Take it earlier rather than late in the evening, as the old advice goes, so it does not sit heavily overnight.
  • The bud macerate comes as drops, and the label’s own guidance is the one to follow.
  • Choose a juice with no added sugar: heavily sweetened drinks work against you when digestion is already unsettled.
Which form for which plant
Form Preparation Traditionally chosen for
Infusion (leaves) Just-boiled water poured over dried leaves, covered, ten minutes Blackberry leaf and lady’s mantle, the everyday astringent cup
Decoction (root) Simmered in water about fifteen minutes, then strained Blackberry root, when a stronger brew is wanted
Juice Pressed fruit, unsweetened, diluted if too sharp Blackcurrant, for its pectin
Bud macerate Buds macerated in alcohol and glycerine, taken as drops Blackcurrant, in the gemmotherapy tradition

Frequently Asked Questions

The one thing to remember: drink plenty of fluids first, and treat a cup of blackberry leaf tea as a short, comforting extra rather than the main move.

Which part of the blackberry do I use, the fruit or the leaf?

The leaf is the part kept in the tea cupboard, dried and crumbled, and it is the one used for an infusion. The root, dug in mid-autumn, gives a stronger decoction in older country herbals. The fruit is eaten for pleasure, and both fruit and leaf have a folk reputation as a throat gargle.

What does lady’s mantle actually taste like?

Bitter, green and markedly drying on the tongue, which is exactly what its tannins would suggest. Most people find it easier with mint or lemon balm infused alongside it. It is not a tea to drink for enjoyment, and traditional use keeps it short.

Can I drink these teas every day?

Tannin-rich infusions are traditionally used over a few days, not as a daily habit. Drunk continuously they dry the gut and can push things towards constipation, and they can interfere with iron absorption. If you want a plant to sip every day, choose something gentler.

Is blackcurrant juice or the bud macerate better?

They are different things. The juice is valued for the pectin in the berries and is taken as half a glass, two or three times in the day, earlier rather than late. The bud macerate belongs to the gemmotherapy tradition, comes as drops, and you follow the label. Neither is suitable during pregnancy.

When should I stop and see someone?

If the upset lasts beyond a day or two, gets worse, or comes with fever, blood or signs of dehydration. Babies, small children and frail older people need advice straight away, because they lose fluids and minerals fast. Plants are for comfort at the edges, not for that situation.

This information is provided for general interest and reflects the traditional use of plants. It is not a substitute for medical advice. If you are on medication, pregnant, or in any doubt, ask a healthcare professional.


Images: Pixabay: Vadim Tashbaev, svklimkin

Written by Gaspard Lorthiois | Loves helping out, especially when it comes to growing things. Worked in herbal medicine, runs a farm, and dabbles in tech. Master's degree and engineer.

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