🌊 Acorus
Acorus cultivation, rhizome uses, and essential oil relevance in medicinal plant production.
Acorus (sweet flag) is a semi-aquatic medicinal herb cultivated mainly for aromatic rhizomes used in traditional formulations.
Crop Profile and Uses
Acorus calamus is known as sweet flag (vacha). Rhizome is the commercial part.
Reported medicinal relevance includes digestive, respiratory, and nervous system support in traditional systems.
Distribution, Climate, and Soil
The crop is adapted to moist and marshy environments across temperate to subtropical zones.
Preferred conditions:
- Very moist to shallow-water zones.
- Loamy organic soils.
- pH roughly 5.5 to 7.5.
Propagation and Establishment
Propagation is done through rhizome/root pieces and occasionally by seed.
Establishment points:
- Use healthy 5 to 6 cm rhizome pieces.
- Keep rooting zone continuously moist.
- Full sun to partial shade is suitable.
Crop Care, Harvest, and Postharvest
- Maintain wet soil conditions, avoid drought stress.
- Keep weed pressure low in young stands.
- Rhizomes are harvested after sufficient growth period (often 2 to 3 years for medicinal grade size).
- Clean and dry rhizomes quickly for storage and trade.
Chemistry and Yield Notes
Key constituents include asarone fractions (alpha/beta forms) and related volatile compounds in aromatic oil fraction.
Typical dry rhizome yields vary by ecology and management; traditional references note moderate per-acre output from mature stands.
Summary Cheat Sheet
| Topic | Exam Key Point |
|---|---|
| Scientific name | Acorus calamus |
| Common name | Sweet flag / Vacha |
| Economic part | Rhizome |
| Ecological preference | Semi-aquatic, moist sites |
| Key chemistry mention | Asarone group |
| Preferred pH | 5.5 to 7.5 |
References
2 sources • [1] [2]
References
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