My home is about 10 years old. When I purchased the home I sodded the lawn with a hybrid bermuda. The home had several small trees and I have since planted more. The lawn did well for the first couple of years and then the trees started getting larger. As you may be aware, bermuda does not grow well under trees. Now in some areas around the trees I have just big dirt spots. Yes, I know it would be a nice place for a shade garden, but I really don not want to do that. Any suggestions on a grass type that would grow in these areas and not look out of place with the rest of the bermuda lawn?