Five Ways Pruning Can Maximize Fall Seeding
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f your lawn has suffered damage due to drought, insects or disease – or if just need to fill in thin/bare areas – you may be considering overseeding your lawn this month. One of the biggest culprits of a thin lawn is often too much shade. Grass doesn’t grow in the
forest and you may be finding this to be true for the turf under the trees at your home as well. How much quality light your lawn is exposed to daily is one of, if not the most important factors relating to turf growth and performance. Here are five ways pruning can help more light reach your lawn. An arborist can help determine which technique best suits your needs. Raising low limbs. In most cases, by eliminating lower branches, you almost instantly increase sun exposure to the turf below. Often this option will give homeowners the biggest bang for their buck. Large low limbs are no problem in parks or open fields, but usually not in
an urban setting. They can block sightlines and be difficult to mow or walk under while also shading the ground below. It is best to eliminate low limbs when trees are small to medium-sized. If the tree is mature, these limbs might need to be removed in phases or reduced
in length to help prevent large wounds that might lead to decay in the future. Opening up “pockets of light.” Selectively removing branches from a tree can create pockets of light, allowing more filtered sunlight to reach the turf. Arborists often use this technique when people have landscape plants that require shade, but they still desire a green lawn. Consistent pruning is necessary to maintain these pockets. You must take care not to thin out a tree too much. A good rule of thumb is to not remove more than one-third of the canopy at any one time. Also, avoid lions-tailing a tree – the practice of stripping most or all of its interior branches and
BEN LINNEMEYER Arborist 16
September 2020 | kcgmag.com
foliage while only leaving growth at the end of branches. Pulling canopies back. If the canopies of trees or large shrubs are encroaching on or over turf, they can be pruned in a way as to pull them up and over the grass.
Oftentimes by pulling the canopies of trees back, the lawn is exposed to more mid-day sun. For trees, this may mean reducing the overall length of a branch or branches back to an appropriate lateral. A good rule of thumb is to look for a lateral that is at least one-third the diameter of the branch you are reducing. A branch this size will help slow the limb’s growth and maintain a more natural look of the tree while retaining enough foliage to sustain the branch moving forward. You can significantly reduce most large, overgrown shrubs. The benefit of doing this is twofold, they will no longer be hanging over the turf blocking out light to the lawn, and they will be easier to maintain in the future.
Removal of trees. Often the last resort, but if you desire a healthy stand of grass, there are times the only way you can achieve it is to remove trees. If you own a property with many trees, selective removal may be needed to create light pockets, as described earlier. Be sure to consult your lawn care professional or an arborist about developing a game plan that best suits your property. In conjunction with removing a tree or trees, grinding out the stump or stumps can best prepare your yard for seeding. Stumps can be a pain to mow around or simply be an eyesore. Plus, if the tree you have eliminated is shallow-rooted, removing surface roots is a must for a smooth, even seeding surface. Eliminate grass. Tree roots and grass don’t play well together. If you want to keep your tree(s) but are fed up with seeding under them year after year or dealing with large surface roots, you can pursue other options. One of these options is to create mulch rings around them. The size of the mulch ring will vary depending on tree size or your personal preference. A couple of advantages of mulch rings are they allow for better uptake by the tree of nutrients and moisture while protecting it against mechanical damage to the trunk from mowers and string trimmers. You can also incorporate trees into your existing beds and plant groundcover or shade-loving perennials of your choice. No matter which of the options listed above may benefit your property, you need to act fast. The seeding window is limited, and the tree care company of your choice may be booked out weeks in advance. Proper pruning will only help ensure you get the most out of your fall seeding investment.
Ben Linnemeyer is a 19-year professional ISA Certified Arborist with Ryan Lawn and Tree, currently serving as the pruning department manager for Ryan Lawn & Tree’s Overland Park, Kansas, location. Linnemeyer earned a bachelor’s degree in biology from William Jewell College in 2001 and has spent all of his professional career at Ryan.
