Sometimes tree pruning goes wrong. Awfully wrong.
If you're not sure how to shape a tree or control its size, learn how – don't just guess. The Arbor Day Foundation lays out tree pruning basics on its website
. Amongst the golden rules: never cut limbs back to stubs and never prune more than a quarter of a tree's crown. Instead, prune individual branches to promote attractive, healthy growth.
Another great way to learn is by viewing other peoples' mistakes. Okay, I'll admit it's kind of fun for a laugh, too. So check out my slideshow on how NOT to prune a tree.