PlantHumidity.
The amount of water vapor in air; relative humidity describes it in relation to the air’s capacity at a given temperature.
What it means for your plants
Use a hygrometer near plants and take repeated readings. Temperature changes affect relative humidity. Misting briefly wets foliage but does not reliably maintain room-wide humidity.
IN PRACTICE
A heating vent can make the immediate environment of a plant different from a reading taken across the room.
Put it into practice
Understand indoor humidity, measure your growing area, and choose realistic ways to support humidity-sensitive houseplants.
Humidity for houseplants: useful changes beyond misting