Forest Service: Cottonwood.
Sep 21, Hybrid poplar trees are deciduous trees that are fast-growing and live a long life. Prune the hybrid poplar at the end of the second or third growing season in order to correct the shape of it. Make sure there is only one vertical branch. Use the clippers to remove any competing branches. Apr 18, Expert Response.
The best thing you can do for your poplar trees is to cut off to the ground or to the trunk any and all suckers and do not paint them, let them air dry. The best time to prune is before the tree leaves out or after the leaves fall off, however; with suckers they can come does magnolia trees fall easily in storms. Sep 21, Poplar trees have a long, lean form, often growing in an oval shape.
While mature trees reach 40 to 50 feet in height and can be challenging for a homeowner to prune, young trees can be readily pruned without professional help. Prepare a sanitizing solution of one part bleach to 10 parts water in a bucket. Place your pruning tools in the bucket.
Identify branches that are too low or facing downward.
Poplar: including Quaking Aspen, Big toothed Aspen, Cottonwood and Bolleana Poplar. These trees should be pruned in fall after the leaves have dropped or in early spring, before the sap starts to flow (March). If needed, a few small branches can be removed in summer after the leaves have reached full size.
The time to make a long lasting effect on the form and structure of the plant is when the tree is. Your pruning cut should expose the least amount of surface area.
To begin, make a cut on the bottom of the branch. Your second cut should be on top of the branch. That should remove most of the branch.
They gain up to 10 feet in height annually and they live for more than 40 years.
The third cut should trim the remaining part of the branch closest to the tree. Oct 05, Hybrid poplars were bred for the paper and biofuel industries. They were bred to grow fast, straight and have minimal branches. They are typically harvested in just 10 years (+/- 5 years). Personally, I would cut them down now while they are a manageable size and replant"real" trees pine, spruce, oak, maple, etc.