Many sites list the planting requirements/stats of bushes, so I didn’t get into those here.
Here are some of my favorite sites for shrub info.
One of my favorite site for shrub and plant info.
This service contains information on the over 5000 herbaceous perennials, shrubs, vines and trees which are currently growing or have been grown in the 23 demonstration gardens at the Missouri Botanical Garden’s Kemper Center for Home Gardening. http://www.mobot.org/gardeninghelp/plantfinder/common.asp
Some of this is members only, but their plant info is great!
Not a lot of plants, but detailed info about the ones that are here.
Forest Farms often has types I can’t find elsewhere.