I've got a very small town yard filled to bursting already with a half dozen container shrubs & plants, plus about 20 other various plants of various sizes with about half that number of bonsai trees and it's for one of the latter that I'm on a quest for another good shrub to attract the bees. I've just "invested" in a lovely crab apple bonsai complete with fruit and I'm keen to ensure that I continue to have fruit on the tree so presumably that will require the flowers to be pollinated? The only shrub I have that currently attracts bees is a beautiful Deutzia STrawberry Fields which has just decided 2 years of flowers was enough to kill it and rather than replace it I wondered if there might be maybe something else more hardy as this was my 3rd attempt to maintain a Deutzia without great success. Any shrub needs to be small as I've a severely arthritic right hand & no ability to lift pots over 18 inches in diameter hence why I'm downsizing 95% of my current shrubs to bonsai size. Any suggestions?