Invest in a Humidifier or Vaporizer
A humidifier is the simplest, most obvious solution to dry air. But are humidifiers good for plants? Yes—the added moisture benefits most houseplants (and furniture and people, too). If you don’t want to buy a whole-house or room humidifier, place a small vaporizer near plants.
Give Your Plant a Friend
Grouping plants also helps, since moisture released by one plant can be picked up by another. Keep in mind, though, that plants also need good air circulation to ward off disease. Leaves of individual plants should not touch. This isn’t always possible, but you should try to give each plant breathing room.
Mist the Leaves
Spray your plants frequently with a fine mist of tepid water. Mist both the tops and bottoms of leaves in the morning so that plants have a chance to dry during the day. (Warning: Misting at night encourages disease.) Besides increasing the humidity around plants, spritzing your greenery also helps deter some insects, especially red spider mites.
Create a Pebble Tray
Place an individual plant or group of plants on a tray of wet pebbles to raise the humidity around them. Fill the tray with water until its surface is just below the bottoms of the pots. Don’t overwater the plants or the roots may rot.
Nest Two Pots
To give your houseplant a more humid environment, nest its pot inside a larger pot, a technique called double-potting. Fill the gap between the pots with sphagnum moss, then pour water over the moss until it’s moist.
