I found just the advice in my other "Good Book"
Begonia semperflorens, Impatiens and Fuchsias are all good for shade. Not forgetting Nelly Moser, of course, well worth a try as it reportedly holds its colour best when North facing.
The book also says they do best if planted when just starting to bloom.
Plants in shade tend to become leggy - looking for light. Planting when in flower would overcome that problem, I imagine.
If you can keep records, I will be very interested in the results of these experiments as I'm hoping to get back to my sleeping giant soon
http://www.ideasforgardens.comLets hear the suggestions from other members.