Answer: Weeping willows can grow upwards of 40' tall and wide so if you want to keep it smaller you'll need to prune on an annual basis. Weeping willows are hardy trees and can be pruned to fit your needs without causing them harm. You can thin the tree by cutting some of the branches completely off the tree. Make a careful assessment before cutting though, because once you remove a branch, it's gone forever! Willow roots can be invasive so you'll want to water deeply to encourage deep root growth and you may want to do a little root pruning between the tree and the foundation of your house. Root pruning is just what it implies - dig down into the ground with a shovel to sever any roots that might be encroaching. Enjoy your garden!
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