I never fertilize mine Vicky, probably should. Mine have outgrown most of their pots and I neglected to cut them back this winter so I do need to refresh the soil and do some pruning.
I'll have to start a new thread to show off some of mine and my Mom's.
We both love them and pick up new ones every year from our favorite vendor that specializes in pelargoniums at the Landscape and Flower Show.