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Limited evidenceSleep & relaxation

Linden Flower

A pleasant traditional bedtime tea made from Tilia flowers, long used in Europe and Latin America for tension and restlessness. The calming effect has been shown in rodents but has never been tested in a controlled human trial.

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What the science says

  • Anxiolytic activity in animals Limited evidence

    Studies of a standardised flavonoid fraction of Tilia americana showed anxiolytic-like behaviour in the elevated plus maze in mice, with quercetin and kaempferol identified as active constituents and serotonergic involvement suggested. These are preclinical models, not clinical outcomes.

  • Sedative and hypnotic effects Limited evidence

    A systematic review of anxiolytic and hypnotic flower extracts in in vivo preclinical studies found Tilia among the plants with reproducible calming activity in rodents. The review explicitly covers animal work, and no human sleep trial of linden has been published.

  • Use for sleep in people Limited evidence

    There are no randomised trials of linden flower tea or extract for insomnia, sleep latency or anxiety in humans. What is documented is centuries of traditional use and a plausible flavonoid mechanism.

Dosage & safety

Studied doseNo clinically studied dose exists. Traditional preparation is 1–2 g of dried flowers (about one teaspoon) infused in hot water for 10 minutes, taken one to three times daily or in the evening.
SafetyWidely consumed as a food-grade tea with a good safety record. Allergic reactions are possible, especially in people sensitised to other pollens. Older reports of cardiac effects from frequent heavy use are anecdotal but suggest not treating it as an all-day drink. Insufficient data in pregnancy and breastfeeding; avoid combining with sedative medication.

How to take it

TimingEvening, about an hour before bed, is the traditional pattern; earlier cups through the day are also common.
With food?With or without food - it is a food-grade tea.
Worth knowingCover the cup while it steeps for 10 minutes; the calming volatile oils escape with the steam if you leave it open.

Interactions

With medications

  • benzodiazepines, z-drugs and other sedatives

    Possible additive drowsiness, though the herb's own sedative effect is mild and unquantified. keep it to an evening cup rather than combining routinely with prescribed sedatives

With other supplements

  • valerian, chamomile and other sedative herbs

    Additive mild sedation. no real hazard, but use one at a time if you want to know what works

Well-established interactions only — this is not a complete list. Always tell your doctor and pharmacist what you take.

Frequently asked questions

Does linden tea help you sleep?

Linden flower tea has never been tested in a human sleep or anxiety trial; its calming effect has been shown only in rodents, so the evidence is limited. It is a pleasant traditional bedtime tea rather than a proven sleep aid.

How do you make linden flower tea?

Traditional linden tea uses 1-2 g of dried flowers (about one teaspoon) steeped in hot water for 10 minutes, covered, taken in the evening or up to three times a day.

Is linden tea safe to drink every day?

Linden flower is a food-grade tea with a good safety record, though allergic reactions are possible in people sensitised to pollens. Older anecdotal reports of cardiac effects from heavy use suggest not drinking it all day, and data in pregnancy are insufficient.

Scientific references

Related in Sleep & relaxation

Herbal medicines: what the evidence says (335)