I am about to empty my window boxes of geraniums and plan to take cuttings to root indoors over winter. (I'm in zone 5). It's a long time since I've done this and have forgotten what I did. There is lots of conflicting advice out there but this is what I plan to do. First of all, I have been told it's too late and it should have been done in August. However, they are still in full bloom and I didn't want empty window boxes during Summer. Any comments? I do know that geraniums need to be kept on the dry side so I plan to root the cuttings in damp perlite, with no rooting hormone, under grow lights. Anyone had success with this method?