Plant Monograph: Agrimony

Name of plant:
Agrimony

Catch phrase (Carmina Gadelica or traditional invocation if available):
No direct Carmina Gadelica verse is reliably attributed to agrimony.
In Anglo-Saxon and European folk tradition it was sometimes called:
“Herb of the soldier’s wound and the quieting of sorrow.”

Family:
Rosaceae

Genus and species:
Agrimonia eupatoria

Other names:
Church steeples, Sticklewort, Cocklebur (regional overlap in naming), Philanthropos (historical herbal name meaning “love of humanity”)

Brief introduction:
Agrimony is a slender, upright perennial herb native to Europe and parts of Asia, now naturalized in North America. It bears tall spikes of small yellow flowers and hooked burs that cling to clothing and fur. Traditionally valued as a gentle astringent and wound herb, it occupies a classic place in European folk herbalism as a “balancing” plant for both skin and digestive complaints.

Traditional uses:

• Wound cleansing and minor cuts

• Gargles for sore throat and mouth irritation

• Digestive support for mild diarrhea

• Mild urinary tract support in folk practice

• Emotional use in European folk tradition for “hidden sorrow” and nervous tension

Historical use:

• Widely used in Classical and Medieval European medicine as a mild astringent

• Listed in Anglo-Saxon herbals (e.g., Herbarium Apuleii)

• Used in monastic medicine as a wound wash and internal tonic

• Associated in folk tradition with protection and emotional “clearing” herbs

• Occasionally used in rural veterinary medicine for minor wounds and digestive upset

Parts used and method of use:

• Aerial parts (leaves, flowering tops)

• Used as:

  • Infusion (tea)

  • Decoction (mild preparations)

  • Gargle or wash (external use)

  • Tincture (modern herbal preparations)

Use in healing (modern herbal practice):

• Mild astringent for digestive tract irritation (e.g., mild diarrhea)

• Topical washes for minor skin irritation

• Gargles for sore throat and oral inflammation

• Sometimes used in Western herbalism as a “gentle tonic” herb

• Mild nervine-adjacent reputation in traditional herbalism (not strongly sedative or anxiolytic in clinical terms)

Pharmacology and biochemistry:

• Contains tannins (notably ellagitannins) responsible for astringent effects

• Flavonoids contributing antioxidant activity

• Volatile compounds in small quantities

• Observed actions:

  • Protein precipitation on mucosal surfaces → reduced secretions (astringent effect)

  • Mild antimicrobial activity in vitro

  • Antioxidant activity from polyphenolic content

• Overall pharmacology: gentle, surface-level mucosal modulation rather than systemic effects

Common dosage:

• Infusion: 1–2 teaspoons (2–4 g) dried herb per cup of boiling water, 1–3 times daily

• Tincture (1:5 in 40–50% alcohol): typically 2–4 mL up to 3 times daily in traditional herbal practice

• Gargle/wash: stronger infusion applied as needed

Safety factors (including side effects):

• Generally regarded as very safe in traditional herbal doses

• High tannin content may cause mild gastrointestinal irritation or constipation in excess

• Rare sensitivity reactions possible in individuals sensitive to Rosaceae family plants

• Not recommended in very high or prolonged doses due to tannin load

First aid / adverse reaction response:

• Mild GI upset: reduce dose or discontinue use

• Constipation: increase hydration; discontinue if persistent

• Allergic reaction (rare): discontinue and seek medical advice if rash or swelling occurs

• No known acute toxicity in typical herbal usage

Drug interactions:

• May theoretically reduce absorption of certain medications due to tannin binding (separate dosing by 1–2 hours)

• No well-documented clinically significant drug interactions

• Caution with iron supplementation if taken simultaneously (tannins may reduce absorption)

Horticultural requirements:

• USDA / Canadian zone: 3–8

• Soil pH: 6.0–7.5 (tolerant of a range, prefers neutral)

• Light requirements: Full sun to partial shade

• Moisture: Moderate; prefers well-drained but not dry soil

• Other notes (growth habit, harvest timing, etc.):

  • Upright perennial herb (30–100 cm)

  • Flowers in summer (yellow spikes)

  • Harvest aerial parts at flowering for peak tannin content

  • Easily self-seeds in suitable habitats

  • Burs cling readily to animals and clothing for seed dispersal

Sampling of clinical reports / studies:

• Limited modern clinical trials on Agrimonia eupatoria itself

• In vitro studies show antioxidant and mild antimicrobial activity linked to tannins and flavonoids

• Traditional European herbal literature consistently supports use as a mild astringent for digestive and mucosal conditions

• Some preclinical research suggests potential anti-inflammatory activity, but human clinical evidence is limited

• Most support comes from longstanding empirical herbal use rather than large-scale randomized trials