Herbarium of the Ancients — Detailed Record

Digitalis purpurea

Read before use: the information below describes traditional and informational uses — it does not replace the advice of a healthcare professional. In case of doubt, pregnancy, breastfeeding, ongoing treatment, or use in children, seek advice before use.

Enhanced precautions for this plant: Highly toxic plant: the margin between useful dose and lethal dose is extremely narrow; any ingestion of leaves, flowers, or seeds can cause serious cardiac disturbances, even death. Never prepare or consume foxglove in any form without strict medical supervision; this is not a plant for foraging or home use. Dangerous interactions with many medications, particularly cardiac treatments, diuretics, and certain mineral salts (potassium, calcium). Strictly contraindicated in pregnant women, breastfeeding women, children, and anyone with cardiac or renal conditions not under medical supervision.

Supervised pharmaceutical preparation — Leaves

Standardized extracts for medical use only

Historically, dried foxglove leaves were processed into powders or extracts standardized for active principles, intended exclusively for medical use under prescription. No home preparation (infusion, decoction, tincture) should be considered; the plant's toxicity makes safe domestic dosing impossible. Dosage must be validated by a healthcare professional or recognized pharmacopoeia before use.

Where to find it

Obtaining the plant

Purple foxglove grows wild in open woodlands, embankments, and acidic heathlands of Europe; it also adorns many gardens as an ornamental plant, but should never be harvested for personal use.

Harvest season

When to harvest it

Historically, the leaves were harvested in early second year of growth, before flowering, but this harvest already required specialized pharmaceutical expertise at the time and was not a domestic practice.

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