Gardeners get the best results with well drained, well aerated soil that contains a high percentage of humus or organic matter. They are relatively clean and will be free of most insects and diseases. A mixture may consist of equal parts of soil, peat moss and horticultural perlite. Vermiculite may be substituted for perlite. Some violet growers prefer the artificial mixtures because they are consistent in quality, while sand and soil can vary.
Violets grow best in a sterilized potting soil or commercial African violet soil mixture.
Potting When potting, remember that violet leaves, stems and root systems are very tender and easily broken. Older plants usually have more than one crown. After you have gently removed the plant from the pot, divide the crowns by cutting through the root ball with a sharp knife. Be careful not to destroy all the roots or to shake all the soil from the root systems. When repotting, partially fill the pot with soil.