Is it true that I should keep some plants and leaves in my yard all winter instead of blowing my garden beds bare?  

Yes!  In addition to adding winter interest to your yard, the seed heads provide food for birds. And a leaf layer several inches deep is a natural thing in any area where trees naturally grow.  Many wildlife species live in or rely on the leaf layer to find food or habitat. Then, when the leaves break down, they provide important nutrients to the soil. So don’t rake or blow your yard bare this year! Learn more from the National Wildlife Federation here.