Summer is at its peak, and we all feel the effects of midday when our homes turn into warm boxes. With the increase in temperature, our dependence on Air conditioners is increasing too, and if you, like me, spend hours worrying about how to reduce this need for artificial cooling then this old Indian material is making a ground-breaking comeback in 2026.
Vetiver, widely known as khus, has cooled spaces across tropical regions for generations. That layer of jute-like material inside your coolers, yes, that is ‘Khus’ or Vetiver.
These woven root curtains sit across windows or doorways and release a refreshing, earthy scent once damp. A gentle breeze passing through the roots carries cooler air indoors. Along with temperature relief, the natural fragrance creates a calm and soothing atmosphere that many modern homes now appreciate again.
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What exactly is Vetiver?
Vetiver comes from the roots of a perennial grass called Chrysopogon zizanioides. The plant grows in dense clumps and forms an extensive root network underground. Once harvested and dried, the fibrous roots can be woven into thick mats or curtains.
Cooling happens through a simple process known as evaporative cooling. Water sprinkled over the roots slowly evaporates as air moves across the surface. This process lowers the temperature of the air that enters the room.
Vetiver curtains also carry a strong sustainability appeal. The material is biodegradable, requires no electricity, and can last through several summer seasons with proper care.
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Why is Vetiver regaining popularity?
• Natural air conditioning
A steady breeze through a damp vetiver curtain can lower indoor temperature by a few degrees, especially on dry summer afternoons.
• Aromatherapy effect
Wet vetiver roots release a woody and earthy scent that feels very rustic and calming. Many people associate the fragrance with relaxation and mental ease.
• Air filtration
The dense weave of roots traps dust particles and light outdoor pollutants before they enter the room, helping keep indoor air fresh.
• Pest control support
Vetiver roots contain natural oils that many insects dislike. This makes them a helpful addition near open windows and balcony doors.
Did you know? Vetiver essential oil is often called the “Oil of Tranquillity” in aromatherapy due to its calming fragrance.
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How to maintain your Vetiver curtains?
| Step | What to do | Why it matters |
| Placement | Install vetiver curtains across windows, balcony openings, or doorways that receive a steady breeze | Moving air carries the cooled air through the room |
| Airflow | Keep surrounding areas open so air can pass easily through the curtain | Better airflow improves the cooling effect |
| Moisture | Spray water on the roots through the day to keep them damp | Damp roots activate the evaporative cooling effect |
| Larger Installations | Use simple drip pipes for bigger curtains | Maintains consistent moisture across larger mats |
| End of Season Cleaning | Rinse the curtain with clean water to remove dust and residue | Keeps the roots fresh and ready for storage |
| Drying | Leave the curtain in direct sunlight until fully dry | Proper drying prevents mould growth |
| Storage | Roll the dry mat loosely and keep it in a dry place | Careful storage helps the curtain last for several summers |
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Aesthetic and design integration
Vetiver curtains bring a warm, golden brown texture that fits homes inspired by boho or minimal design. I often pair natural materials like cane, linen, and terracotta with these root mats.
Vetiver curtains need not be limited to just your windows. In fact, they work even better in open spaces like balconies, patios and verandas where air is a little more free flowing. Many people even choose to use them as partitions in larger rooms allowing the air to flow and cool down the space while giving it an organic and earthy touch. This is perfect for anyone looking for sustainable design options.
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- How often should vetiver curtains be watered?
They should remain damp during the hottest part of the day. Light spraying every few hours usually works well.
- Do vetiver curtains work in humid climates?
They perform best in dry heat. In humid areas, the cooling effect may feel lighter.
- How long do vetiver curtains last?
With proper drying and storage after summer, many can last three to four seasons.
- Can vetiver curtains be used indoors?
Yes. They are commonly placed across windows, balcony doors, and breezy passageways inside the home.
The author of this article holds a Master's Degree in Interior Design and has spent over a decade in research, teaching, and designing homes from scratch.
Disclaimer: At Hindustan Times, we help you stay up-to-date with the latest trends and products. Hindustan Times has an affiliate partnership, so we may get a part of the revenue when you make a purchase. We shall not be liable for any claim under applicable laws, including but not limited to the Consumer Protection Act, 2019, concerning the products. The products listed in this article are in no particular order of priority.
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