A: Late winter or early spring is generally the best time to prune conifers (needled evergreens) such as arborvitae, but these plants do not respond well to heavy pruning at any time of the year.

If you want to prune an established tree, that task is often best completed with the assistance of a tree care professional; a young or newly-planted tree is much easier to prune yourself.

Mid to late winter is generally the best time to prune trees, according to our Garden Editor and in-house Master Gardener, Tiffany Selvey. "Most trees benefit from pruning while they're dormant ...

Winter is a great time to prune deciduous trees. Once the leaves have fallen, it is easy to see the structure of the tree and determine what branches should be ...