geraniums - potting up

I appreciate keeping a geraniums in the same pots for more that a couple of years, the plant will become woody and the flowers get smaller. Would I be correct in thinking that if the plant is well feed each year, I should be able to keep them in the same pots for a few more years without too much change in the size of the flowers - I am in my 80's and I am not looking for work!!

 

I think if you feed in the growing season you can get away with it, I assume we are referring to Pelargoniums or is it Hardy Geraniums.

 

I feed my Geraniums (Pelargoniums) all summer & they spend a couple of years in the same pots. Though I take lots of cutting & start many afresh every year. The cutting once they grow & flower always look much better that the others.