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Agave tequilana

Blue agave

Caution

Other names: Blue agave

A blue-grey succulent from the Mexican highlands, the source plant for tequila.

A large rosette-forming succulent with thick fleshy leaves and spiny margins; the sweet stem juice is the basis of tequila and agave syrup in Mexico.

Family
Asparagaceae
Plant type
Succulent
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.
Blue agave — plant habitus (Wikimedia Commons).

Photograph on Wikimedia Commons (CC BY-SA 3.0).

Plant habit

Safety — read before use

For this herb it is important to check warnings, mix-ups and cautions. Start with the Safety section.

Quick overview

A practical summary; details are in the sections below.

Safety grade
Caution details
Scientific sources on the card
No specific citations attached to claims yet
When and what to harvest
  • Leaf — October–April
Full harvest section
Processing methods

Syrup, Fermentation

All methods and recipes on the card
Topics and symptoms

Earth element (symbolism), Fire element (symbolism), Sacred plants

Topics section, Symptoms overview

Identification and mix-ups

Succulent perennial in Asparagaceae forming a basal rosette of fleshy lance-shaped leaves, distinctly blue-green (glaucous), about 100–150 cm long and 10–12 cm wide, with small brown marginal teeth and a sharp brown-black terminal spine. The rosette is 1.2–2 m tall and wide. After 5–10 years it sends up a panicle 5–8 m tall, then dies (monocarpic).

Possible mix-ups and risks

Most often confused with century plant (Agave americana), which is much larger (to 2–4 m) and has broader grey-green (not narrow blue) leaves. It is not strongly toxic, but the sap contains irritant crystals (raphides) and can cause skin and mucous-membrane irritation. No acutely poisonous lookalike is documented.

Similar herbs

No related herbs are linked yet.

Topics and symptoms

More topics are in the symptoms and topics overview.

Sources

Geographic occurrence

  • Mexico

    Common (expected wild occurrence in the region)

Harvest

  • LeafOctober–April

    winter

    Region: Mexico

    Notes: The heart ('piña') at maturity, 6–10 years after planting.

Storage

  • Airtight storage(Leaf)

    Agave syrup keeps 2 years in a closed bottle at room temperature; it does not crystallise. The roasted heart (piña) is processed at once.

    Safety:
    Fresh leaf sap contains irritant crystals (raphides) — wear gloves when handling the plant.

Processing methods on this herb card

  • 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: no·Scientific context for this method: no

    Agave syrup comes from industrial hydrolysis of the fructans in the roasted heart; the result is 70–90 % fructose — a sweetener, not a 'healthier sugar'. It is not made at home.

  • Fermentation(Leaf)Suitability: Low suitability

    Microbial processing (fermentation) of plant material for drinks or foods.

    Full method description (from the catalogue)

    Fermentation changes sugars, flavour, and microbial composition (e.g. herbal ferments, oxymels combining honey and vinegar per tradition). Hygiene, temperature, and time are critical for a safe outcome.

    Home ferments should not smell "rotten"; when in doubt, discard.

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

    Fermenting and distilling the hearts into tequila is a craft with a protected designation of origin (Jalisco); home distillation is illegal in Czechia.

Traditional / spiritual use

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

  • Mayahuel and the four hundred rabbits

    Symbolism

    Spiritual useMythologyRitualSymbolism

    In Aztec mythology the agave (metl) is the body of the goddess Mayahuel, whose four hundred breasts nursed the four hundred rabbits, gods of drunkenness (Centzon Totochtin). Pulque, the fermented agave sap, was a ceremonial drink allowed to elders and priests, and drinking it to excess was punished. Today's tequila from blue agave is a colonial distillate of the same plant. A record of myth, not effect.

    Form:
    goddess Mayahuel, ceremonial pulque, 400 rabbits
    Claim strength:
    Tradition
    Source note:
    Aztec mythology (Codex Magliabechiano, Codex Borgia — Mayahuel); history of pulque and tequila (Jalisco).

Scientific notes

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

No published study records yet.

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.