One is Ann Folkard, a twining geranium with bright pink, close to magenta flower. I have not seen it at a garden center in 5 years. You can order from Lazy S Farm/Nursery.
There's another place that has a lot of geraniums, and had Ann. I don't remember the name of it but I could find it.

It is not rambunctious like Rozanne, and sometimes I just get a few flowers (it is among many, many shade loving plants, so its quite a journey for it through the garden) But that glimpse of chartreuse leaf or magenta through dark and blue greens of hostas and yellow hakone grass is lovely, just lovely.

I have read often that there's another geranium bred from Ann- perhaps Ann Thompson?- that is supposed to be an improvement. But if the offspring isn't chartruese and magenta, then its not in the running.

Thanks for your imput!!

I did read about ann thompson. She is a clumper and the impression I got not quite as chartreuse.
Marie

Another nursery that carries huge variety is "Geraniacae" I may have mispelled it but its ...name.....what they all are. (It is late and a long day)