Plants need a chance to adjust to new surroundings, light, temperatures, humidity, any change in condition before attempting to repot. A good rule of thumb is to wait 4 weeks before repotting. In our greenhouses, plants are bred, propagated, and grown in both natural light and fluorescent light. We find that plants grown under fluorescent lighting tend to have a more vivid color and larger blooms. Variegated foliage is more intensified, too.
Adequate light is very important for abundant bloom.
Any window that has strong, bright light is good. Mild direct sunshine is beneficial. Shield violets from hot mid- day sun with sheer curtains. Light intensity decreases sharply as you move away from the light source, so do keep the plants as near the window as possible. If you do not have good natural light, use fluorescent lights 12 hours a day.