African violets (Saintpaulia) belongs to the family of
plants known as Gesneriads. This family includes many other showy
flowering houseplants including: Episcia, Streptocarpus,
Columnia, Hypocyrta, Boea and many others. Care
and culture of these fibrous rooted gesneriads are about the same as
that for African violets. The original wild species grow in Africa
from near sea level to about 3,000'. They grow only in partial shade
in soil that is well drained but rich in organic matter. To get your
potted violet to thrive, you must try to simulate the natural
environment of their wild ancestors.
Understanding how and when to water your violet is crucial to
success. The best way to know if your violet needs watering is to feel
the surface of the soil. If the soil feels dry to the touch, you
should water. African violets can be watered from the top or from the
bottom by setting them in a tray of water. In either case, be sure to
use water that is just warm to the touch. On sunny, bright days it is
best to water early in the morning or late in the afternoon. This is
because sunlight, passing through water drops on the leaves will cause
spotting. On cloudy, dark days, you may water anytime and not be
concerned with water that contacts the leaves. If you bottom water, be
sure to remove the violet from the water-filled tray as soon as the
soil is completely moist. Don't water again until the sur-face of the
soil feels dry to the touch. If you keep them soggy all the time, you
will promote crown rot.
Proper light is the next requirement to meet for success with your
violet. In their native environment African violets are never exposed
to the direct rays of the sun. The light they receive is filtered
through the leaf canopy of the forest. In your home you can duplicate
this light by placing your violets in a north window (which never gets
direct sun) or in an east or southeast window protected with sheer
curtains. African violets will also thrive when grown under
fluorescent or grow lights. Artificial light gives you complete
control over the quality and quantity of light your violets receive.
Those with darker leaves and darker blossoms will usually tolerate
more light that lighter varieties such as those with white or light
pink flowers.
African violets are also sensitive to temperature and humidity. The
ideal is 64 to 70 degrees at night and 70 to 85 degrees in the
daytime. Low temp-eratures will cause the plant to grow slowly and the
leaves will be short, hugging the pot. Too much heat and they become
leggy with few flowers. Here in the north, our heating systems will
often dry the air, making it hard on our humidity-loving violets.
Humidifiers will help a great deal. You can also provide humidity by
placing your African violets on a tray filled with gravel and water.
The gravel will keep the pot from sitting in the water. Moisture
evaporating from the surface of the tray will waft upward, increasing
humidity around the leaves of the violet.
Violets that are flowering should be fed "Peter's African
Violet Food" about once a week. After flowering, reduce feeding
to once a month.