Where a few plants are concerned, humidity may be increased by setting the pots in watertight metal or plastic trays filled with water and gravel or pebbles. Maintain a shallow level of water in the tray. Misting is not recommended. A recent trend for easier control of humidity is to plant violets in large glass goblets, aquariums or terrariums. Soil Moisture Soil moisture and proper watering are critical to your success in growing African violets.
Plants can die from too much or too little water.
How often to water and how much vary depending on the soil, pot and plant sizes, and environmental conditions. For this reason, you'll have to learn the moisture requirements of your plants and develop an individual watering schedule. Moisture meters and devices are available which measure soil moisture. Allow the soil to become slightly dry between waterings, but don't allow it to become excessively dry as wilting can cause root damage. Apply water until it drains out the bottom of the pot.