If you aren’t sure what you’re doing, be very careful when cutting mature tree roots (roots larger than 2 inches). Root cutting and pruning can affect both a tree’s stability and its ability to nourish itself. Issues during root cutting can result in damage or injury. 

It’s recommended you call in a pro to help, unless it’s a very small tree and you aren’t worried about the prospect of losing the tree.

Ideally, you should wait to prune until trees have gone dormant in late fall to early winter. The worst times to prune trees are early fall and late summer, as pruning them so close to dormancy makes it difficult for the tree recover before it goes dormant for the season.

Talking with a septic pro before planting trees near your tank is best to ensure the roots won’t interfere with your septic system. However, there is an easy way to figure out where to plant a tree—but you’ll need to know how tall it can get when it’s fully grown. For instance, if the tree can reach 50 feet, plant it at least 50 feet from your septic system.

Most plum trees are pruned into a vase or open wine glass shape. They’ll have a shorter central leader (the trunk) that supports three to four main branches. Of course, this isn't always the case. If you have a European plum tree, you can grow it in a pyramid shape. Let the central leader extend the length of the tree and prune smaller branches to create the pyramid.