African Violets

It seem that Mom's African Violets have a death wish.  After blooming so beautifully last year, they now appear to be on their last legs.  The big one, particularly, does not seem to drink any water.  I have watered from above once or twice because I just had to give it some nourishment.  I re-potted it in a shallower pot with African Violet soil and it hasn't made a difference.  Frankly, I'm surprised they've lasted this long.  I never had the touch that Mom had.