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Thymus serpyllum

Thymus serpyllum

Other names: Mateřídouška

Thyme-like scent; dry grasslands.

Creeping stems and tiny leaves.

Family
Lamiaceae
Plant type
Perennial herb
Safety level (indicative)
Generally recognised as safe
What the safety levels mean (expand legend)
  • Generally recognised as safe. Often a common herb with reasonable harvest and use; still read the specific warnings on the card.
  • Information. Primarily informational — details in the text and warnings below matter most.
  • Caution. Needs extra care (dose, duration, sensitive groups, interactions).
  • Risky. Significant risks — verify sources, contraindications and professional guidance.
  • Not for home experimentation. Not suitable to experiment with at home without knowledge and certainty.
  • High risk for internal use. Particular risk with internal use (e.g. alkaloids); avoid prolonged or irresponsible dosing.
  • Not specified. Level not filled in yet — rely on individual warnings and links below.
Mateřídouška obecná — habitus rostliny (Wikimedia Commons).

Fotografie na Wikimedia Commons (CC BY-SA 3.0).

Plant habit

Quick overview

A practical summary; details are in the sections below.

Safety grade
Generally recognised as safe·details
Scientific sources on the card
Yes — sources are listed with claims·Science section
When and what to harvest
  • Leaf — May–September
Full harvest section
Processing methods

Herbal infusion (tea), Syrup, Honey macerate, Herb bundle

All methods and recipes on the card
Topics and symptoms

Breathing comfort, Common cold — overall comfort, Cough and mucus…

Topics section · Symptoms overview

Identification and mix-ups

Flowers in dense heads.

Possible mix-ups and risks

Other wild thymes are similar.

Similar herbs

  • Salvia officinalis

    Tymián a šalvěj — často spolu v bylinkové zahrádce; jiná aromata a bezpečnostní témata.

  • Mentha × piperita

    Máta a mateřídouška z hluchavkovitých; při sběru ověř přeslen listů a vůni.

Topics and symptoms

More topics are in the symptoms and topics overview.

Geographic occurrence

  • Czechia

    Common (expected wild occurrence in the region)

  • Austria

    Common (expected wild occurrence in the region)

  • Germany

    Common (expected wild occurrence in the region)

  • Hungary

    Common (expected wild occurrence in the region)

  • Poland

    Common (expected wild occurrence in the region)

  • Slovakia

    Common (expected wild occurrence in the region)

Harvest

  • LeafMay–September

    léto

    Region: Czechia

    Notes: Harvest note (full translation pending): Nat/list pred plnym odkvetenim.

Storage

  • Drying(Leaf)

    Sušený rostlinný materiál uchovávej v uzavřené nádobě.

    Light:
    Mimo přímé UV.
    Moisture:
    Nízká relativní vlhkost.

Processing methods on this herb card

  • Herbal infusion (tea)(Leaf)Suitability: High suitability

    Infusion or brief extraction in hot water; usually without long boiling.

    Full method description (from the catalogue)

    In the narrow sense, “tea” often means an infusion: you pour water just off the boil over the dried plant matter and let it steep for a few minutes. Temperature, steep time, and the herb-to-water ratio change both flavour and what dissolves into the liquid.

    Compared with a decoction, heat exposure is shorter and gentler; tender leaves and flowers are often better as an infusion than with prolonged simmering. For each herb, always follow the plant card for suitable plant part, preparation, and safety notes — general rules never replace species-level judgement.

    Traditional context for this method: yes·Scientific context for this method: no

    Procedure (recipe)

    Wild thyme infusion

    About 10 min · Difficulty: Beginner

    Extraction parameters (rough guide): 250 ml water · 95–100 °C · 6–12 min steep

    1. Use 1–2 teaspoons of dried herb with leaves (and flowers if present) per cup.
    2. Pour boiling water, cover, and steep 8–10 minutes.
    3. Strain — a strong aromatic, thymol-like scent is typical.

    Why this way (extraction / behaviour of constituents)

    Wild thyme is taxonomically and chemically close to garden thyme; HMPC texts refer to Thymus vulgaris/zygis and serve as regulatory context, not as dosing instructions for wild harvests. Very long steeping increases bitterness and volatile-oil loss.

    What is typically released
    Silice a fenolové složky v nálevu.
    Solvent / water
    Voda.
    After preparation
    Pij čerstvě.

    Extra literature for the recipe

  • Syrup(Leaf)Suitability: Medium suitability

    Decoction or infusion with sweetener and reduction; shelf life depends on sugar and storage.

    Full method description (from the catalogue)

    Syrups combine a herbal base with sugar or honey and often a short boil to concentrate and improve hygiene. Preservation depends strongly on water content, sugar level, and bottling practice.

    Home syrups may fall under food rules; store in the fridge after opening per recipe.

    Traditional context for this method: yes·Scientific context for this method: no

    Procedure (recipe)

    Wild thyme syrup

    About 45 min · Difficulty: Beginner

    1. Steep 3–4 handfuls dried tops in 500 ml boiling water, cover, and cool about 30 minutes, then strain.
    2. Add about the same volume of sugar (or honey) and warm gently to dissolve without caramelising.
    3. Bottle and store refrigerated; dilute in water to taste.

    Sweet syrup — caution with diabetes; not a substitute for medical respiratory care.

    Why this way (extraction / behaviour of constituents)

    Home preparation following this recipe is mainly educational and cultural; it should not be assumed to match the extractive or safety profile of registered medicines or standardized extracts. Check specific effects, drug interactions, and contraindications on the herb card and with your clinician if you use prescription drugs.

    What is typically released
    orientační domácí extrakce — profil závisí na teplotě, čase řezu a poměrech
    Solvent / water
    mediální složení (voda, alkohol, olej, med…) viz jednotlivé kroky
    After preparation
    po přípravě uchovávej hygienicky a podle typu výrobku (chlad, světlo, alkohol)

    Extra literature for the recipe

  • Honey macerate(Leaf)Suitability: High suitability

    Macerating plant material in honey (a honey conserve).

    Full method description (from the catalogue)

    Honey as a maceration medium creates a viscous mixture with its own biochemistry: water activity, acidity, and enzymes influence shelf life and flavour. Traditionally it is used with delicate flowers or herbs when you want aroma bound into honey.

    Infant botulism guidance for honey and honey safety in general sit outside a single herb page; maceration time, ratios, and storage must follow a vetted recipe and source, not this general overview alone.

    Traditional context for this method: yes·Scientific context for this method: no

    Procedure (recipe)

    Wild thyme honey

    About 30 min · Difficulty: Beginner

    1. Fill a jar about one third with dried leafy tops and cover with honey.
    2. Macerate 2–3 weeks, then strain — thyme-like, aromatic volatiles.

    Maceration takes weeks.

    Why this way (extraction / behaviour of constituents)

    Home preparation following this recipe is mainly educational and cultural; it should not be assumed to match the extractive or safety profile of registered medicines or standardized extracts. Check specific effects, drug interactions, and contraindications on the herb card and with your clinician if you use prescription drugs.

    What is typically released
    orientační domácí extrakce — profil závisí na teplotě, čase řezu a poměrech
    Solvent / water
    mediální složení (voda, alkohol, olej, med…) viz jednotlivé kroky
    After preparation
    po přípravě uchovávej hygienicky a podle typu výrobku (chlad, světlo, alkohol)

    Extra literature for the recipe

  • Herb bundle(Leaf)Suitability: High suitability

    A tied bunch of dried or fresh herb (e.g. for bath or steam).

    Full method description (from the catalogue)

    A bundle keeps material together for dipping in water, steaming over a pot, or hanging in a shower. Bundle size changes how strongly the bath water picks up compounds.

    After use, dry thoroughly or compost depending on material condition.

    Traditional context for this method: yes·Scientific context for this method: no

    Procedure (recipe)

    Wild thyme bundle for the bath

    About 20 min · Difficulty: Beginner

    1. Tie dried leafy bundles in a teabag or bath mesh and steep in warm water.
    2. Steep a few minutes — aroma is strong; for sensitive skin try a weaker infusion first.

    Why this way (extraction / behaviour of constituents)

    Home preparation following this recipe is mainly educational and cultural; it should not be assumed to match the extractive or safety profile of registered medicines or standardized extracts. Check specific effects, drug interactions, and contraindications on the herb card and with your clinician if you use prescription drugs.

    What is typically released
    orientační domácí extrakce — profil závisí na teplotě, čase řezu a poměrech
    Solvent / water
    mediální složení (voda, alkohol, olej, med…) viz jednotlivé kroky
    After preparation
    po přípravě uchovávej hygienicky a podle typu výrobku (chlad, světlo, alkohol)

    Extra literature for the recipe

Traditional / spiritual use

Kept separate from science — entries are cultural or symbolic, not medical advice.

Related guides in the library

  • Mountain thyme scent and low creeping mats

    General

    Traditional useFolk useHerbal lore

    Wild thyme evokes sun-warmed stones and low mats — a Mediterranean image that also fits warm slopes here. Thyme notes suggest clean air in story, not a binding medical promise.

    Form:
    čaj, koření v minulosti
    Claim strength:
    Tradition
    Source note:
    Landscape and kitchen associations.

Scientific notes

Each claim lists a study type and a source (URL or DOI) where available. Dose notes from the literature are informational only.

How to read evidence strength and study type labels

Labels summarise how the catalogue entry is tagged — they are not a medical verdict on efficacy. For every row, read the summary, limitations and source link.

Evidence strength

Evidence level not specified
The author did not grade the record; judge from the summary, limitations and source link.
Narrative / orientational literature
Descriptive or expert literature without controlled group comparison — context rather than proof of effect.
Weak evidence
Study or conclusion with major methodological limits; treat only as a pointer for further reading.
Preliminary findings
First or smaller studies — interesting direction, not the final word on efficacy or safety.
Moderate strength of evidence
Moderate strength by study design; sample and context limits still apply.
Stronger evidence
Stronger design or consistency of results within the study’s stated limits.
Review article
A review summarises multiple sources; quality depends on review method and field.

Study type

Narrative / expert text
Expert text or overview without a classical study design.
In vitro study
Cell culture or test-tube experiment — does not show an effect in the body.
Animal study
Animal model — transfer to humans is not automatic.
Observational study
Observing groups without random treatment assignment; confounding is possible.
Clinical trial
Human clinical trial; sample size and control group matter.
Randomised controlled trial
Randomised controlled trials are among the stronger designs when well conducted.
Review study
A review aggregates multiple papers — quality depends on selection rules.
Systematic review
Systematic review with explicit search and selection methodology.
Meta-analysis
Statistical pooling of studies; outcome depends on input data and heterogeneity.
Regulatory assessment / monograph (EMA, WHO…)
Regulatory body summary for a herbal product — different context from a single RCT; often about products, not home tea.
Expert monograph (herbal preparations)
Structured literature summary for a plant or drug — quality depends on author and edition year.

  • Thyme and thymol appear in respiratory product research and preservative studies; kitchen culinary doses are far below trial extracts.

    Evidence level not specifiedNarrative / expert text

    Limitations: Airway trials often use extracts, not tea; thyroid and seizure medication interactions are discussed for concentrated thymol exposure.

    Vstup do odborné literatury (orientační)

  • Evidence summary (full translation pending): EMA HMPC pro nat tymianu obecneho; materidouska je pribuzny druh rodu Thymus — dokument je nejblizsi verejny regulacni paralel k aromatickemu caji z nate.

    Review articleRegulatory assessment / monograph (EMA, WHO…)Year: 2013

    Preparation form in the study: infusion

    Active compound / focus: tymol, karvakrol (obecně u Thymus)

    Limitations: Limitations (translation pending): Neztotoznuj automaticky druhove rozdily; pri alergii na Lamiaceae vynech.

    Dose note (from literature): Dosage notes (translation pending): Viz PDF k pripravkum.

    EMA Committee on Herbal Medicinal Products (HMPC) — European Medicines Agency

    EMA: Final assessment report on Thymus vulgaris L. and Thymus zygis L., herba

Images

The main photo is in the card header. More images will appear here when available.

Safety

What the warning types mean

The type on each warning helps group themes — it does not replace the separate severity badge.

Internal use
Risks from swallowing, extracts, duration of use or concentration for internal use.
Interactions / medicines
Possible effect on medicines or concurrent treatment — check sources and a professional.
Raw plant parts
Raw, unripe or poorly prepared plant parts can be dangerous.
Toxins and regulation
Toxic constituents or regulated compounds (e.g. in distillates).
Contact with the plant
Skin or mucosa irritation from contact with fresh plant or sap.
Allergy
Allergic reactions, often linked to family sensitisation.
Harvesting and contamination
Contamination, species mix-ups or harvesting from unsuitable places.

No structured safety records yet.