This was my first attempt at geraniums so I only kept 7 cuttings. Now I wish that I'd kept more. I read somewhere on the web that they would rot if not left to callous over first. So after I took the cuttings I just threw them in the garage for a day. They wilted and looked bad but they did callous so I stuck them in some damp potting mix and in a plastic bag. They rooted fast and have been blooming all winter.
Karen