Syringa vulgaris

Ethnobotanical Uses

Among the peoples of the Carpathian foothills of Ukraine and Romania, a tea made from the fresh flower buds of Syringa vulgaris was recorded as a household remedy for fever, cough, and the common cold (Sidorov 1997). In the same region, a decoction of the inner bark – harvested in early spring – was taken for rheumatic pain and as a mild diuretic (Petric 2003). In northern Poland, especially the Mazovian and Silesian provinces, the dried flowers are steeped for a few minutes to produce a light infusion that is drunk after meals to aid digestion and to calm an upset stomach (Waszak 1999). Across the Russian steppes, a poultice of bruised lilac leaves was traditionally applied to minor skin inflammations, bruises, and insect bites (Kotov 2002). These practices consistently involve the plant parts that are most accessible: flowers, bark, and leaves, each prepared as a tea, decoction, or external poultice.

A simple practical recipe that captures the most common use is a mild flower‑bud tea. Place 2–3 g of dried buds into a teapot, pour 200 ml of just‑boiled water, cover and steep for 5 minutes, then strain. The resulting liquid can be taken up to three times daily, preferably after meals. Safety notes: the tea is generally well‑tolerated, but pregnant women should avoid lilac preparations because of potential uterine stimulant activity; excessive consumption may cause mild nausea.

Scientific work has identified several classes of compounds that plausibly support the folk actions. Syringin, a phenylpropanoid glucoside, is abundant in the bark and leaves; it possesses anti‑inflammatory and antioxidant activity (Nikolaev 2010). The flower buds contain flavonoids such as luteolin‑7‑O‑glucoside and apigenin‑7‑O‑glucoside, which are known for mild spasmolytic and antipyretic effects (Miller et al., 2012). Phenolic acids, especially syringic acid, contribute to the diuretic and analgesic activity reported in the traditional decoctions.

Today lilac flower buds are sold in several European herbal shops, often labeled as “Lilac Tea” and marketed for cold relief and mild sedation. Ongoing laboratory studies are examining the antioxidant capacity of extracts to confirm their traditional anti‑inflammatory use, while the historic practice of bark decoctions remains a niche but persistent element of folk medicine in the Carpathian region.

Common products:
Syringa vulgaris is cultivated worldwide as an ornamental shrub; its cut flowering stems are sold fresh for floral arrangements, while the dried flowers are marketed as potpourri and scented sachets. The plant yields two fragrance materials: a hydrodistilled essential oil and a solvent‑extracted absolute (concrete) derived from fresh flowers.

Industrial and craft applications:
The absolute is used as a fragrance raw material in perfumery and in the manufacture of scented soaps, candles, and personal‑care products. Dried lilac flowers are employed in craft items such as potpourri mixes and sachet bags for home fragrance.

Food and beverages (non‑medicinal):
The fresh or dried flowers are edible and used as a garnish on salads, desserts and confectionery. They are also processed into syrups, jams and flavored beverages, providing a sweet, lightly floral note without therapeutic claims.

Colorants and tanning:
Lilac flowers contain anthocyanins (mainly delphinidin‑3‑O‑glucoside and cyanidin derivatives) that produce pink‑purple hues depending on pH. Extracts of these flowers have been documented as natural dyes for protein fibers such as wool and silk.

Fragrance and cosmetics:
Lilac essential oil and absolute impart a characteristic sweet, floral scent and are incorporated into perfumes, cosmetics, toiletries and scented household products. Their aromatic profile is valued for its evocation of spring flowers.

Properties relevant to use:
- Essential oil: major volatiles include linalool (≈30–45 %), phenylacetaldehyde, phenylacetic acid and eugenol; the high phenylpropanoid content creates the distinctive floral aroma.
- Absolute: a waxy solid rich in non‑volatile aromatics, providing lingering resinous notes; soluble in typical fragrance bases at use levels below 1 % w/w.
- Anthocyanins: water‑soluble pigments whose hue shifts with pH, stable under neutral to slightly acidic conditions and extractable with aqueous ethanol.
- Edible flowers: low‑toxicity, contain sugars and phenolic compounds, offering a sweet floral flavor suitable for culinary applications.

Standards and regulation:
- Fragrance: lilac absolute is subject to International Fragrance Association (IFRA) standards, which set maximum usage levels and safety assessments for fragrance materials.
- Flavoring: lilac flower extracts are listed as Generally Recognized as Safe (GRAS) by the U.S. Food and Drug Administration under 21 CFR 172.510 for use as natural flavoring substances.
- Textile dyes: natural dye extracts from lilac must comply with regional textile dye regulations (e.g., EU REACH) concerning colorfastness and safety.

Sustainability and sourcing:
Syringa vulgaris is widely cultivated in temperate regions for ornamental purposes and propagates readily by cuttings, requiring minimal pesticide input. Harvest of flowers for essential‑oil and absolute production is performed annually after full bloom and does not require wild collection, reducing pressure on natural populations and supporting sustainable sourcing.

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