I have a beautiful rex begonia. Would it be helpful to mist the plant during the winter months?
While rex begonias and many other houseplants prefer high relative humidities, misting is ineffective unless you’re prepared to mist the plants several times a day. Also, rex begonias are not fond of water on their foliage.
The relative humidity around houseplants can be increased by using a room humidifier, grouping plants together, or placing them on trays (saucers) filled with pebbles and water. When using humidity trays, make sure the pots remain above the water line.