Air Plants: Tillandsia Care Guide

Air plants (Tillandsia) are among the most curious things you can keep at home: they live without soil, absorb water and nutrients through their leaves, and can sit on driftwood, in glass bowls or hang from the ceiling. They're perfect if you want something decorative, original and easy to look after.

What they are and why they need no soil

They're epiphytes: in the wild they cling to trees and rocks rather than rooting in the ground. Their roots are only for anchoring, not feeding. All their water and nutrients are taken in through tiny scales (trichomes) spread across the leaves. That's why they can live literally "in the air."

Light

• Ideal: bright, indirect light near a window without harsh direct sun.
• Tolerates: a little soft morning sun.
• Avoid: intense direct sun, which dries and scorches them.

Silver-leaved varieties (more covered in trichomes) handle more light and drought; soft, green-leaved ones want a bit more shade and humidity.

Watering: the important part

Here's the secret to air plants. You don't water them with a can — you soak them:

1. Submerge the whole plant in a bowl of room-temperature water.
2. Leave it to soak for 20 to 60 minutes, once or twice a week.
3. Lift it out and shake it well upside down.

Between soaks, you can mist them on dry days. Use chlorine-free water (rain, filtered or left to stand).

The step that kills most air plants: drying

If a tillandsia holds water in the center of its rosette, it rots from the inside. So after every soak it's essential to dry it:

• Set it upside down on paper or a rack.
• Leave it somewhere airy until it's completely dry (2-4 hours).
• Never return it wet to a closed, unventilated container.

Humidity and temperature

They appreciate medium-to-high ambient humidity and temperatures between 60 and 82 °F. In very dry, heated rooms, mist more often or move them near a bright bathroom.

Feeding

A couple of times a month, in spring and summer, you can add a heavily diluted tillandsia or bromeliad fertilizer to the soak water. It boosts growth and flowering. Avoid common feeds high in copper or urea.

Flowering and reproduction

Each tillandsia flowers only once in its life, often spectacularly. After blooming, the plant produces pups at the base: let them grow to about a third of the mother's size, then gently separate them for new plants.

Display ideas

• On a piece of driftwood or cork, with no toxic glues.
• In open glass bowls or terrariums (never closed and humid).
• Hung with fishing line for a floating effect.

Common problems

• Soft, dark base: rot from staying wet; review your drying.
• Wrinkled, dry leaves: lack of water; soak longer.
• Brown tips: very dry air or hard water.

Is your tillandsia looking off and you can't tell why? Upload a photo to our AI diagnosis tool. And if you like plants that forgive forgetfulness, take a look at our succulents guide.