The best management of … Remove thatch from areas the dethatcher can't reach with a thatch rake. Zoysia Patch disease (Rhizoctonia fungus) can be a problem in over-fertilized lawns. As they decompose, the clippings provide nutrients for the roots. Thatch needs to be removed every two to three years through core aeri fication or dethatching, but care should be taken because the recovery rate of some zoysiagrass cultivars is slow. Denise Brown is an education professional who wanted to try something different. Dethatch warm-season grasses, such as Bermudagrass or Zoysia grass, after spring green-up, as they enter early … Go over the entire lawn with a power rake or lawn dethatcher, … Also, as the grass reseeds itself, new growth may take hold in the … Thatch Removal: Periodically it may be necessary to remove accumulated thatch. 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. Be careful not to set the mower too low, as it may scalp the lawn. What is produced is a mixture of the plant’s fine and coarse leaf blades. It also means more frequent mower blade sharpening to prevent injury to the grass. Excess thatch limits the plant’s ability to uptake nutrients, water, promotes fungus, and harbors pests. If you … The best time to dethatch cool-season lawns is late August to early October, depending on your location, when the grass is growing vigorously and few weed seeds are likely to germinate. This layer of material called “thatch” accumulates in your lawn when air, water, and light cannot reach the surface of the soil. In Arizona, however, this can be the best time to detatch your lawn if you have warm season grass. A healthy lawn will have a small amount of thatch and I think you should leave it. Apply 1 pound of balanced nitrogen, phosphorous and potash per 1,000 square feet of lawn. Sign up to get all the latest gardening tips! Warm-season grass can be dethatched in late spring or early summer after it starts to grow. Try not to dethatch … Mowing: Mow the lawn slightly lower than the regular summer mowing height of 1½ to 2 inches. Carefully light the grass on fire in an area well away from anything flammable other than the lawn, and watch it closely. Zoysia thatch removal should happen when the thatch is visible. Spring & … Following aeration with fertilization and Lime for Optimal results. If the thatch is less than ½ inch thick, you should not dethatch. Cut out a plug of grass and soil from your lawn to determine the thickness of the thatch layer. © Copyright 2020 Hearst Communications, Inc. Cut out a plug of grass and soil from your lawn to determine the thickness of the thatch layer. If it makes a difference, you can lightly rake across your lawn to break up the soil plugs for a … For thick grasses like Bermuda grass and zoysia grass, use a vertical mower with steel blades. While the soil plugs may look unsightly to you, don’t remove them! You can prevent some of that thatch by mowing frequently or using a bag on the lawnmower. Pests and disease are the top two zoysia thatch problems, but it can also reduce the plant’s ability to feed itself. Brown holds a master's degree in history education from Truman State University. Preparing to Dethatch Lawns should be … While the soil plugs may look unsightly to you, don’t remove them! Warm-season grass can be … A light … The dark, matted layer that rests on top of the soil is the thatch. Zoysia thatch removal only needs to occur every year or two. 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. The key is – a little thatch. Dethatching a zoysia lawn can help minimize the impact of that heavy organic matter surrounding the lower blades and roots. Never dethatch when your lawn is dormant or stressed; you can damage it beyond recovery. Since zoysia grass tends to accumulate the layer of dead surface roots, stems and runners known as thatch more than other types of grass, you need to know how to dethatch zoysia. Northwestern Lawn Alternatives: Choosing Lawn Alternatives In Northwest U.S. Evergreen Favorite: Container Grown Olive Trees, Evergreens In My Heart – Three Must Have Evergreen Trees, Decisions, Decisions: Choosing An Evergreen In The Landscape, Spruce Trees For Landscaping - Spruce It Up With Evergreens. Dethatching in fall will make them weak in … 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 impede growth and cause damage. This will tell you which direction the … Warm-season grasses, including Zoysia, Bermuda and St. Augustinegrass, should be dethatched in summer, again, when they’re growing most. 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. This is when sod is actively growing and can quickly recover from the process. The rough nature of the coarse blades takes a long time to break down and results in a thick, impenetrable thatch. Dethatching in fall will make them weak in winter. 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. The rule on most grasses is a half inch (1.2 cm.). You can perform a similar action by spreading a thin layer of compost over soil, but you will miss the aeration benefit. And remember to overseed with zoysia grass seeds to encourage new growth and recovery. Zoysia grass turns brown during its dormant phase but this doesn't mean that it's dead. You should … General Recommendation on de-thatching – If there is more then 1/2” of thatch present (Thatch is the presence of dead leaves and stems that build up on the surface of the soil). If you try, you might permanently damage the stand of grass. Zoysiagrass will recover from dethatching best when it is actively growing in mid-to-late spring or early fall and generally benefits from annual dethatching. For example, if you ran the dethatcher east to west on the first pass, run it north to south on the second. There is no hard and fast rule on dethatching a zoysia lawn; however, you can take a small plug and examine the level of thatch easily. THATCH REMOVAL In addition to the deeper roots, the plugs of soil that are deposited on top of the ground help decompose thatch – without the risk of turf damage that power dethatchers pose. is a warm-season turf species prized for its drought tolerance and an ability to withstand heavy traffic and slight shade well. 2 You do have to dethatch a zoysia lawn whenever the thatch buildup gets too thick, and because of the growth habit of zoysia, the vertical mower or rake will naturally pull up stolons. 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