I have 2 Alberta spruce trees that have grown at different rates. Can I shear one to match the other?
Certified GKH Gardening Expert
You can prune them, although it will change the overall shape of the tree. It wouldn't hurt it to do so, however it will promote that tree to grow even faster than the other tree, which will further your problem. There are many fertilizers that can be applied by spraying, that will help that tree to grow faster by applying it to ,only, that tree. Here is a link that will help: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/what-is-foliar-spray.htm