In parts of the country where winters are frigid, you would want to avoid dethatching warm season grasses (Bermuda, buffalo, zoysia, for example) in March or April because spring frosts will likely … A more practical reason is that dethatching is done only when the grass is vigorously growing in June. Dethatching causes a lot of damage to your grass and should be done at a time when the grass is growing so it can fix the damage before the next dormant period. That's when your grass is growing most vigorously. Dethatching zoysia yard we installed 4 years ago. They are what will help break down your thatch … A healthy lawn will have a small … Dethatching in fall will make them weak in winter. Grubs and bill bugs (plus mole crickets in the Lower South) are soil-borne insects which can cause damage. While the soil plugs may look unsightly to you, don’t remove them! Never dethatch when your lawn is dormant or stressed; you can damage it beyond recovery. Cut out a plug of grass and soil from your lawn to determine the thickness of the thatch layer. At this level, the grass may root in the thatch making it less stable, winter injury may occur, drought is more extreme, and pests and disease become more frequent. To avoid dethatching at all, mow once per week, provide the right amount of fertilizer and water, and use your lawnmower bag to pick up clippings. Dethatch warm-season grasses, such as Bermudagrass or Zoysia grass, after spring green-up, as they enter early … Dethatch cool-season grasses, such as Kentucky bluegrass, in late summer or early fall. Be careful not to set the mower too low, as it may scalp the lawn. You can use the wire-tine type of dethatcher on Kentucky bluegrass or fescue lawns. Nighttime temperatures should be above 60 degrees Fahrenheit. When it’s 110 degrees everday, that small amount of thatch is what helps protect the roots and prevent moisture from evaporating so quickly. The best time of year to burn Zoysia grass is in the early spring, just before the grass begins to grow and turn lushly green again. By: Bonnie L. Grant, Certified Urban Agriculturist. ft. Mower: Cali.Trimr, Toro 1600, JD S240 As they decompose, the clippings provide nutrients for the roots. Organic Lawn Care: Your Guide to A Healthy Lawn, Seniors And Houseplants: Indoor Senior Gardening Ideas, Mason Jar Snow Globe Ideas – Creating Snow Globe From Jars, Gardening Questions And Answers – Our Top 2020 Gardening Topics, Hose Nozzle Watering Guide: Learn About Garden Hose Spray Settings, Upcycled Garden Hose Ideas: How To Cleverly Reuse Garden Hoses, East North Central Lawns: Alternatives To Grass In Upper Midwest. If possible, use a mower with a bagger to collect the clippings and remove any dead material left from winter dor… While the soil plugs may look unsightly to you, don’t remove them! Zoysia Patch disease (Rhizoctonia fungus) can be a problem in over-fertilized lawns. Excess thatch limits the plant’s ability to uptake nutrients, water, promotes fungus, and harbors pests. This will tell you which direction the … If you are doing a light fall overseeding on a fescue lawn, the holes left by the aerator make a perfect place for the seeds to fall into and germinate. The key is – a little thatch. This may result in the removal of some of the grass and require reseeding, so dethatch in late summer or early autumn. You can use the wire-tine type of dethatcher on Kentucky bluegrass or fescue lawns. Warm-season grasses, including Zoysia, Bermuda and St. Augustinegrass, should be dethatched in summer, again, when they’re growing most. Use a sharp knife or a hand trowel to dig straight down and get a cross-section view of the plant structure both above and below the ground. Warm season grasses such as zoysia, Bermuda and buffalo shouldn't be dethatched in March or April, when a late frost will hurt new growth. Also to know is, when should you Dethatch Zoysia grass? Dethatching in fall will make them weak in … Replace the plug. How Make a Grid Pattern in the Grass With a Lawnmower, Seedland: Where to Grow Zoysia Grass in the USA, How to Dig Up a Lawn to Replant Grass Seed. Lawn experts agree, very little thatch is produced by zoysia grass. What is produced is a mixture of the plant’s fine and coarse leaf blades. Two years and more than 500 articles later, she's enjoying her freelance writing experience for online resources such as Work.com and other online information sites. 1. Removing thatch in a lawn is an important, although infrequent, part of lawn maintenance. The best time of year for dethatching is the same as for aerating: early spring or early fall for cool-season grasses, and late spring through early summer (after the second mowing) for warm-season grasses. 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