Herbarium of the Ancients — Detailed MonographFR · EN

Hierochloe odorata

Hierochloë odorata
Read before use: the information below describes traditional and informational uses — it does not replace the advice of a healthcare professional. If in doubt, or in cases of pregnancy, breastfeeding, ongoing treatment, or use with children, seek advice before use.
This plant contains coumarin, a substance that may interact with anticoagulant medications; advice from a healthcare professional is recommended before any regular internal use. Avoid prolonged consumption or high doses, as coumarin may affect the liver in excess. Not recommended for internal use during pregnancy or breastfeeding, due to lack of safety data. Smudging should be performed in a well-ventilated area, respecting the sacred nature traditionally associated with this practice.
Infusion — Dried stems and leaves

Light sweetgrass infusion

Steep a few dried and braided strands in hot water just below boiling for a few minutes, covered. Strain before consuming, being careful not to exceed occasional consumption. Dosage should be confirmed with a healthcare professional or recognized pharmacopoeia before use.

Smudging — Dried braids

Ceremonial smudging

One end of the dried braid is gently ignited then blown out to produce fragrant smoke, which is directed with the hand or a feather toward oneself or a space to be purified. This practice is part of a specific traditional context and deserves to be approached with respect. Dosage should be confirmed with a healthcare professional or recognized pharmacopoeia before use.

Aromatic sachet — Dried braided strands

Scented bundle for linens

Dried braids are simply placed or hung in a closet or drawer, where they slowly diffuse their vanilla-like fragrance over the weeks. Dosage should be confirmed with a healthcare professional or recognized pharmacopoeia before use.

Where to find it

Sourcing the plant

It can be found growing wild in wet meadows and peat bogs of northern North America and Eurasia, as well as in dried braid form in certain specialty herb shops or Native American product stores.

Harvest season

When to harvest it

Traditional harvest occurs in late spring or early summer, when the stems are still green and pliable, before being braided and dried in the shade.

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