Posted: 06/06/2014 at 19:43
Hiya boating belle,
Are you talking pelargoniums? The indoor varieties? Or the hardy ones?
Im assuming pelargoniums so I think your compost simply ran out of food. Multipurpose composts increasingly are poor now generally. I feed potted on plants more often now because growth stopped or was sluggish.
So, I would start a weekly dilute feed....phostrogen or similar. Dont over water plugs either. ,