- The EU herbal monograph (EMA/HMPC/734125/2010, adopted 27 March 2012) recognises lavender flower tea only as a traditional remedy for mild stress, exhaustion and sleep, at 1-2 g in 150 ml of boiling water up to three times a day.
- The strongest lavender research is on Silexan, an 80 mg oil capsule, not on tea: a manufacturer-funded meta-analysis of 3 trials (697 patients) found a 3.83-point drop on the Hamilton anxiety scale versus placebo.
- The only randomised trial of the actual drink (80 postnatal women, 2 g in 300 ml once a day for 2 weeks) found less fatigue and depression, but no better sleep, and the gains faded 4 weeks after stopping.
- Skip it in pregnancy, while breastfeeding and for children under 12, and do not drive if it makes you drowsy; NCCIH lists diarrhoea, headache, nausea and burping as oral side effects.
- Brew true lavender (Lavandula angustifolia) rather than camphor-heavy lavandin, and see where it grows on the Valensole plateau in early July or at Farm Tomita in Hokkaido in mid-July.
What Lavender Tea Is (and Which Lavender Belongs in Your Cup)
Lavender tea is an infusion of the dried flower buds of lavender, usually brewed on its own or blended with chamomile, lemon balm or black tea. Like every herbal tisane it contains no tea leaf and no caffeine. If you are new to the category, our guide to tisanes explains why herbalists and tea people use different words for the same cup.
The plant matters more than most labels admit. The EU monograph and almost every study cited below concern Lavandula angustifolia, often sold as true, English or fine lavender. The fields that fill postcards of Provence are frequently lavandin (Lavandula x intermedia), a hybrid grown for its higher oil yield. The Herb Society of America notes that lavandin carries high levels of cineole and camphor, giving it a strong, astringent aroma and a bitter taste, while angustifolia has more linalyl acetate and linalool and less terpinen-4-ol. In a cup, that difference reads as soap and medicine versus soft, floral and faintly sweet.
Evidence for lavender oil, aromatherapy or oil capsules is also not evidence for the tea; this guide keeps them apart.
What Regulators Actually Say
No health authority has approved lavender tea as a treatment for anything. What exists is a European Union herbal monograph, the reference text that national regulators use when they register traditional herbal products. For lavender flower, the European Medicines Agency adopted monograph EMA/HMPC/734125/2010 on 27 March 2012. It covers traditional use only, which means the claim rests on long, documented use plus plausibility, not on clinical trials proving efficacy.
The single indication is relief of mild symptoms of mental stress and exhaustion and to aid sleep. The tea dose is 1-2 g of dried flower in 150 ml of boiling water, taken as an infusion three times daily. It lists no known side effects or interactions; its only contraindication is hypersensitivity to lavender, and the cautions are covered below.
Lavender also appears in the EU text for Species sedativae, a calming tea blend. The draft monograph EMA/HMPC/438183/2017, released for consultation in May 2020, builds the blend from three or four of hops, lavender, lemon balm, passionflower and valerian, with lavender making up 15-36 percent. Its posology is 2-4 g of blend in 150 ml of boiling water three to four times a day, the last dose before bed. In the United States, lavender (Lavandula officinalis) and spike lavender are listed among essential oils and natural extractives generally recognised as safe for food use under 21 CFR 182.20, which is a food-ingredient status, not a health claim.
The Evidence, Graded: Tea Versus Oil
Most lavender tea articles borrow claims from studies that never served a cup of tea. This table sorts the evidence by what people actually took.
| Claim | What was tested | Key finding | Applies to tea? |
|---|---|---|---|
| Mild stress and sleep | EU traditional-use review of lavender flower | Accepted as traditional use at 1-2 g per 150 ml, 3 times daily; no efficacy trials required | Yes, as traditional use only |
| Postnatal fatigue and low mood | Lavender tea, 2 g in 300 ml, once daily for 2 weeks, 80 women with poor sleep | Fatigue, depression scores and bonding improved at 2 weeks; sleep quality did not (p = 0.46); effects gone 4 weeks after stopping | Yes, one small trial |
| Anxiety | Silexan oil capsule, 80 mg daily for 10 weeks, 3 trials, 697 patients | 3.83-point greater fall on the Hamilton anxiety scale than placebo; funded by the manufacturer | No, oil extract |
| Depression | Small studies of oral capsules or tea, per NCCIH | Preliminary signals only; topical lavender showed no effect | Partly, weak |
| Sleep and insomnia | Aromatherapy with lavender oil | NCCIH: unclear whether it helps sleep quality or insomnia | No, inhaled oil |
The one real tea trial
The study closest to an ordinary mug is Chen and Chen, published in Worldviews on Evidence-Based Nursing in 2015. Eighty postnatal women with poor sleep quality were randomised to lavender tea or a comparison group. The tea group drank 2 g of dried flowers steeped for 10-15 minutes in 300 ml of hot water once a day for two weeks. At two weeks the tea drinkers reported less fatigue, lower depression scores and better mother-infant attachment. Sleep quality, the outcome the women were recruited for, did not improve significantly. Four weeks after they stopped drinking it, the differences were no longer significant.
That is a modest result: a short-lived effect on mood and tiredness in one group, measured by questionnaire, in one study. It also involved new mothers, while the EU monograph advises against use during lactation for lack of safety data, so the cautious reading is to ask a midwife or doctor first.
Why Silexan dominates the headlines
Silexan is a standardised lavender essential oil sold as an 80 mg capsule. A 2017 meta-analysis in the European Archives of Psychiatry and Clinical Neuroscience pooled three placebo-controlled trials covering 697 patients with subthreshold anxiety and found a 3.83-point advantage on the Hamilton Anxiety Rating Scale after 10 weeks. The research was funded by the manufacturer, Dr. Willmar Schwabe, and two authors were company employees. Burping, indigestion and allergic skin reactions were the side effects most linked to the capsule. A cup of tea delivers an unmeasured fraction of that oil, so none of this transfers directly to the drink.
Lavender Tea Side Effects and Who Should Avoid It
At kitchen doses lavender tea is mild, but mild is not the same as risk-free. The National Center for Complementary and Integrative Health (NCCIH, page updated February 2025) lists diarrhoea, headache, nausea and burping as possible effects of oral lavender. Its guidance on pregnancy and breastfeeding is blunt: little is known about whether lavender is safe in either. The EU monograph goes further and does not recommend use in pregnancy or lactation.
- Pregnancy and breastfeeding: not recommended by the EU monograph; safety unknown according to NCCIH.
- Children under 12: use not established in the EU monograph. NCCIH also notes a few reports of breast-tissue swelling in children using topical products containing lavender, though it is unclear whether lavender caused it.
- Driving and machinery: the monograph warns lavender may impair the ability to drive. Do not test a new bedtime tea before a long drive.
- Allergy: the only formal contraindication is hypersensitivity to lavender. If lavender soaps or oils have ever given you a rash, start cautiously or skip it.
- Sleep or anxiety medication: no interactions are reported, but check with a pharmacist before stacking calming products.
Do not add lavender essential oil to tea: the safety record of the dried flower does not extend to concentrated oils. Lavender tea also stays caffeine-free only when it is brewed alone; blends with black or Earl Grey tea carry the caffeine of their base leaf, which our caffeine in tea guide breaks down by type.
How to Brew Lavender Tea
The simplest method follows the EU dose. Weigh 1-2 g of dried Lavandula angustifolia buds into a pot or infuser; a small kitchen scale is worth it, because buds vary in density. Pour over 150 ml of freshly boiled water, cover to keep the aromatic oils in the cup, and steep. The monograph gives no steeping time; 5 to 10 minutes is a sensible kitchen starting point, and the 2015 trial used 10-15 minutes for a larger 300 ml mug. Strain and taste before adding honey or lemon; lavender turns bitter and soapy quickly if over-dosed or over-steeped. Dried buds are about three times as concentrated as fresh blooms, according to the Herb Society of America, so halve the amount if you are experimenting with your own garden flowers.
| Style | Amount | Water | Steep | Notes |
|---|---|---|---|---|
| Plain lavender (EU monograph dose) | 1-2 g dried flower | 150 ml boiling | 5-10 min, covered (kitchen guide) | Up to 3 cups a day under the traditional-use posology |
| Trial-style mug | 2 g dried flower | 300 ml hot | 10-15 min | Once a day, as in the 2015 postnatal study |
| Calming blend | 2-4 g blend, lavender 15-36 percent | 150 ml boiling | Per pack | Species sedativae pattern with chamomile-style partners such as lemon balm or passionflower |
| Lavender black tea | Pinch of buds with 2-3 g black tea | Just off the boil | 3-4 min | Contains caffeine; not a bedtime cup |
For a softer cup, pair lavender with flowers that share its evening role. Lavender with chamomile is the classic, apple-and-honey sweetness rounding off lavender’s edge. Lavender with passionflower or a small share of valerian mirrors the EU calming blend, though valerian’s earthy smell divides drinkers. Our brewing guide covers timing for black-tea bases.
Where Lavender Grows: Two Fields Worth the Trip
Valensole plateau and the Luberon, Provence
The Valensole plateau in Alpes-de-Haute-Provence covers about 800 square kilometres at roughly 500 metres altitude, 15 minutes from Manosque and 30 minutes from Moustiers-Sainte-Marie. According to Alpes-de-Haute-Provence Tourism, the fields bloom from mid-June to mid-July, the colour peaks in early July, and harvesting begins around mid-July, which leaves visitors about a month. These are working farms: picking flowers without the grower’s permission is forbidden, and visitors are asked not to walk into the crops and to park properly. Quieter fields line the road from Moustiers towards Sainte-Croix-du-Verdon.
To understand the difference between fine lavender and lavandin before you buy any to brew, stop at the Musée de la Lavande Luberon in Coustellet (276 route de Gordes, 84220 Cabrières-d’Avignon). Run by the Lincelé family, lavender growers in Haute-Provence since 1890, it shows a large collection of copper stills and explains how fine lavender is grown and distilled. For 2026 the Luberon tourist office lists opening from 31 March to 23 December, 10:00-13:00 and 14:00-18:00 daily, continuous 10:00-18:00 in July and August, with adult admission at EUR 8, reduced EUR 5.50-7 and children EUR 4.
Farm Tomita, Furano, Hokkaido
Japan’s best-known lavender fields are at Farm Tomita in Nakafurano, Hokkaido (15 Kisenkita). Entry to the flower fields is free, the farm opens 9:00-17:00 with seasonal variation, and it is a 25-minute walk from JR Nakafurano Station. Peak lavender is around mid-July, with early varieties colouring from late June and late ones lasting into early or mid-August. If you are building a Japan trip around tea, pair a Furano stop with our Japan tea travel guide.
How to Buy Lavender for Tea
Look for three things on the label. The botanical name should be Lavandula angustifolia (older packs and US rules may say Lavandula officinalis). The product should be sold as culinary or food grade. And the buds should be whole, blue-grey and fragrant when you rub a few between your fingers, not brown or dusty. Culinary cultivars matter less than freshness, but the Herb Society of America groups angustifolia cultivars by flavour: Royal Velvet and Buena Vista lean floral and pair well with tea, while Melissa and Miss Katherine lean spicy.
Some lavandin cultivars, such as Provence and Gros Bleu, are lower in camphor and are used in savoury cooking, but most lavandin makes a harsh tea. If a Provence market stall cannot name the species, buy that bag for a drawer sachet instead.
Frequently Asked Questions
Does lavender tea help you sleep?
Lavender tea is recognised in the EU only as a traditional aid to sleep, not a proven treatment. The 2012 EU monograph accepts 1-2 g in 150 ml of boiling water up to three times a day for mild stress and sleep. The one randomised tea trial, in 80 postnatal women, found less fatigue and low mood after two weeks but no significant change in sleep quality.
What are the side effects of lavender tea?
The side effects of oral lavender listed by NCCIH are diarrhoea, headache, nausea and burping. The EU monograph lists no known side effects for the tea but warns it may cause drowsiness that affects driving, and it rules out use if you are allergic to lavender. Oil capsules in trials also caused indigestion and allergic skin reactions in some users.
Is lavender tea safe during pregnancy?
Lavender tea is not recommended during pregnancy or breastfeeding under the EU herbal monograph, because its safety has not been established. NCCIH says little is known about lavender safety in either situation. Because no study has shown it is safe for an unborn baby or a nursing infant, ask your midwife or doctor before drinking it rather than relying on its gentle reputation.
How much lavender should I use for one cup of tea?
Use 1-2 g of dried lavender flowers in 150 ml of boiling water, weighed rather than spooned if you can. That is the dose in the EU traditional-use monograph, which allows up to three cups a day. Steep covered for about 5 to 10 minutes as a kitchen guide. Using more flowers or steeping longer quickly makes the tea bitter and soapy rather than stronger in any useful way.
Can I drink lavender tea every day?
Yes, adults can drink lavender tea daily within the EU monograph limit of three cups of 1-2 g each, provided they are not pregnant, breastfeeding or allergic. The monograph sets no maximum duration but says to see a doctor if symptoms persist. In the 2015 trial, benefits faded within four weeks of stopping, so any effect depends on continued use.