Hi Gary, I searched for butterfly & bee attractive plants. I did not find any specific cultivars that are considered unacceptable. I can tell you that fragrance is very attractive to insects. Bees& butterflies love basil; butterfly larva like dill, and rosemary and milkweed.
The first link is for techniques to attract pollinators aside from just plants.
http://www.gardeners.com/how-t...
Not knowing your sun/part sun/shade areas, I will post links for all three.
http://www.gardensablaze.com/C...
http://www.sunset.com/garden/f...
I think this final link will be of great benefit as it is area specific and the plants do not require massive plantings to attract the butterflies, bees and other pollinators.
http://www.xerces.org/pollinat...
I hope these are of better use to you, but still hope you will join us on the butterfly, bee and bird forum here.
