Ushira (Vetiver) in Ayurveda: Properties & Everyday Use

In short

Ushira, known as vetiver in English and khus in Hindi, is a familiar part of the Indian kitchen. Classical Ayurveda describes it as bitter and sweet in taste, light and oily in quality, and cooling by nature. Vetiver roots are traditionally steeped in drinking water in summer.

In your day

  • Its roots are woven into summer screens.
  • As a cooling food, tradition leans on it more in the warmer months.

Good to know

In everyday food amounts it is part of ordinary home cooking. If you're pregnant, nursing or take regular medication, check with your doctor before using it beyond normal food amounts.

What it is

Ushira (usheera in some spellings) is the root of Vetiveria zizanioides (L.) Nash (family Poaceae): the densely tufted perennial grass known worldwide as vetiver. Taxonomy note: the same plant is also treated under the accepted name Chrysopogon zizanioides; both names refer to the vetiver root of commerce, so either name on a label means this plant (JPSI review).

The root is the part used: it is famously aromatic, the source of vetiver essential oil ("oil of tranquility" in perfumery), and the material of khus-khus mats and coolers across South Asia. The oil is dominated by sesquiterpenes such as khusimol, α- and β-vetivone, and vetivazulene (JPSI review; 2026 scoping review).

Classical properties

Traditional use

Classical Ayurvedic texts use ushira for conditions described in dosha terms: Raja Nighantu mentions it in contexts translated as pacifying vata and pitta, and texts such as Bhavaprakasha and Raja Martanda associate it with uses spanning thirst, burning sensations, and skin conditions (JPSI review). The root's cooling fragrance also gives it a long folk role in heat and summer complaints. These are classical and folk uses, not clinical proof: the human evidence is assessed below.

What research has looked at

Reaction time and autonomic arousal — one human experiment

In a randomized, single-blind, placebo-controlled crossover experiment, 30 healthy volunteers performed a 20-minute visual display terminal task while exposed to vetiver essential-oil vapor (under low and high oil conditions) or a no-odor control, with brain and autonomic function monitored. Low-condition exposure was associated with faster reaction times, increased oxygenated hemoglobin in the bilateral prefrontal cortex, and increased sympathetic nervous activity; high-condition exposure produced no such effect. The authors concluded vetiver oil at the low condition "may enhance performance of VDT work" (Cheaha et al., Biomedical Research 2012).

That is a task-performance experiment in 30 people, not a treatment trial. It says nothing about anxiety, insomnia, attention disorders, or cognition.

Sedation signals — animals only

In rats, inhaled zizanoic acid (a sesquiterpene from vetiver root oil) altered EEG activity in patterns consistent with sedative and sleep-promoting effects (Cheaha et al., Journal of Natural Medicines 2016). This is animal work; it does not establish that vetiver oil, mats, or root preparations induce sleep in people.

What the evidence does not support (yet)

A 2026 scoping review of the plant's pharmacology found the modern literature dominated by in-vitro and animal work, antimicrobial, antioxidant, anti-inflammatory, and anxiolytic-like signals in rodents, with essentially no human efficacy trials beyond the single experiment above (2026 scoping review). Claims that vetiver "treats" anxiety, ADHD, insomnia, or skin disease run far ahead of the evidence.

Safety notes

Published human safety data for vetiver root are essentially absent: a data gap, not a safety finding. Two specific cautions:

There are no adequate trials in pregnancy or breastfeeding. Talk to a qualified clinician before any medicinal use.

FAQs

What is ushira?

Ushira (usheera) is vetiver: the fragrant root of Vetiveria zizanioides, also called Chrysopogon zizanioides. It is the root used for khus-khus mats and vetiver essential oil (JPSI review).

Does vetiver help with anxiety or sleep?

There are no human trials supporting that. One experiment (n=30) linked its vapors to faster reaction times and arousal during a computer task, an alertness signal, if anything, and sedative-like EEG effects have only been shown in rats (Cheaha et al. 2012; Cheaha et al. 2016).

Is it safe to drink vetiver water or ingest the oil?

Do not ingest vetiver essential oil. Human safety data for oral vetiver root are essentially absent; the only human study used inhaled vapor, not oral dosing. Do not infer an oral dose from aromatherapy experiments.

Are Vetiveria zizanioides and Chrysopogon zizanioides the same plant?

Yes: the same vetiver species under two botanical names. Either name on a label means this plant.

What dose of ushira was used in studies?

Swastik does not suggest amounts. The right amount depends on the person, the preparation and the product, so check with a qualified Ayurvedic practitioner or your doctor before taking any herb.

Sources

Disclaimer

This article is for educational purposes only and is not medical advice. Herbal products can interact with medications and are not suitable for everyone. Talk to a qualified healthcare practitioner before use — especially if you are pregnant, breastfeeding, managing a medical condition, or taking prescription medicines.

Related herbs

Herbs with overlapping classical actions and dosha effects in the Swastik herb library.

  • Drakshadi Kashayam — shares Dahashamana actions; also pacifies Vata & Pitta
  • Drakshadi Kwath — shares Dahashamana actions; also pacifies Vata & Pitta
  • Gambhari Phala — shares Dahashamana actions; also pacifies Vata & Pitta
  • Gangeruki — shares Dahashamana actions; also pacifies Vata & Pitta
  • Himasagara Thailam — shares Dahashamana actions; also pacifies Pitta & Vata
  • Ikshu — shares Trishnahara actions; also pacifies Pitta & Vata
  • Kushmanda Svarasa — shares Dahashamana actions; also pacifies Pitta & Vata
  • Madhuyashtyadi Thailam — shares Dahashamana actions; also pacifies Pitta & Vata