African Violets are remarkably easy houseplants to propogate.
All
you need to do is to take a healthy leaf from near the centre of a plant which
is in good flower. Trim the leaf stalk down to about one inch using a sharp
knife. Now dab a drop of your own perspiration (human sweat is an excellent
rooting compound) on the cut stalk and push firmly into a pot containing a
mix of 50% vermiculite and 50% soilless compost.
Water and seal the whole lot in a plastic bag until you see lots of young
growth. When the new African Violet plantlets are more than one inch tall,
split them and plant out into their own pots.