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. Difficult to remove – One of the most frustrating zoysia … You can prevent some of that thatch by mowing frequently or using a bag on the lawnmower. 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. October 28, 2010. A healthy lawn will have a small … By: Bonnie L. Grant, Certified Urban Agriculturist. 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. Thatch – Another one of the facts about zoysia grass is that is prone to thatch problems.While you will have less mowing, you will have to do more thatch control, which is significantly more labor intensive.. Cut out a plug of grass and soil from your lawn to determine the thickness of the thatch layer. Early spring and early fall are ideal times for cool-season grasses like Kentucky bluegrass and perennial ryegrass. After dethatching, your lawn will look bare briefly, but … If it makes a difference, you can lightly rake across your lawn to break up the soil plugs for a … A dethatcher works best when the lawn is lightly moist — not too wet or too dry. Rake the entire lawn with a lawn rake to remove the thatch debris pulled up by the power rake. For example, if you ran the dethatcher east to west on the first pass, run it north to south on the second. Excess thatch limits the plant’s ability to uptake nutrients, water, promotes fungus, and harbors pests. This may result in the removal of some of the grass and require reseeding, so dethatch in late summer or early autumn. Also to know is, when should you Dethatch Zoysia 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. You can prevent some of that thatch by mowing frequently or using a bag on the lawnmower. 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. Zoysiagrass (Zoysia spp.) To prevent thatch, mow often, water less and apply fertilizer frugally. Try not to dethatch … Adjust the depth of the cutting blades based on the thickness of the thatch layer. You can perform a similar action by spreading a thin layer of compost over soil, but you will miss the aeration benefit. 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. In fact, it actually conserves moisture and insulates roots. A dethatcher works best … In Arizona, however, this can be the best time to detatch your lawn if you have warm season grass. Spring & … Grubs and bill bugs (plus mole crickets in the Lower South) are soil-borne insects which can cause damage. It is best not to do it in the middle or late of summer. The mower setting should be around 1 to 1½ inches high. 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. 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. Following aeration with fertilization and Lime for Optimal results. Zoysia thatch removal only needs to occur every year or two. Dethatching in fall will make them weak in winter. 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. When long periods go between … Go over the entire lawn with a power rake or lawn dethatcher, … And remember to overseed with zoysia grass seeds to encourage new growth and recovery. 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. For thick grasses like Bermuda grass and zoysia grass, use a vertical mower with steel blades. 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. You can use the wire-tine type of dethatcher on Kentucky bluegrass or fescue lawns. 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. 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 … Denise Brown is an education professional who wanted to try something different. Sign up to get all the latest gardening tips! Dethatching. Cut out a plug of grass and soil from your lawn to determine the thickness of the thatch layer. Pull it across the lawn to cut thatch and pull it to the surface. The resulting holes aerate the sod while the little plugs rot over time and create a top dressing in the lawn. Also, as the grass reseeds itself, new growth may take hold in the … The rough nature of the coarse blades takes a long time to break down and results in a thick, impenetrable thatch. If there is a bunch of dry, dead leaf blades built up at the base of the plug, it is probably time to dethatch. Carefully light the grass on fire in an area well away from anything flammable other than the lawn, and watch it closely. A little thatch isn’t a bad thing. That's when your grass is growing most vigorously. Dethatch warm-season grasses, such as Bermudagrass or Zoysia grass, after spring green-up, as they enter early summer's peak growth. Pests and disease are the top two zoysia thatch problems, but it can also reduce the plant’s ability to feed itself. You can use the wire-tine type of dethatcher on Kentucky bluegrass or fescue lawns. Zoysia thatch removal only needs to occur every year or two. 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. Apply 1 pound of balanced nitrogen, phosphorous and potash per 1,000 square feet of lawn. Nighttime temperatures should be above 60 degrees Fahrenheit. Mowing: Mow the lawn slightly lower than the regular summer mowing height of 1½ to 2 inches. 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. The best management of … You should … Dethatching is the mechanical removal of the layer of cuttings and stems that build up between green blades and soil in a lawn. 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. 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. If you scrupulously catch zoysia grass clippings every time you mow, you don’t need to. What is produced is a mixture of the plant’s fine and coarse leaf blades. You can also manually remove the thatch with a hard rake. © Copyright 2020 Hearst Communications, Inc. 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. 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. It also means more frequent mower blade sharpening to prevent injury to the grass. Cut out a small plug and look at the root zone and the base of the leaves. Removing thatch in a lawn is an important, although infrequent, part of lawn maintenance. Dethatching a zoysia lawn can help minimize the impact of that heavy organic matter surrounding the lower blades and roots. When long periods go between mowing, the grass blades are long and resilient, resulting in zoysia thatch problems. This will tell you which direction the … Theycallmemrr Posts: 34 Joined: Thu May 16, 2019 1:02 pm Location: Watkinsville Grass Type: Bermuda Lawn Size: 20,000 sq. Your cue to dethatch warm-season varieties like zoysia and Bermuda grass … Zoysia may need dethatching every few years, but this can be reduced by practicing annual core aeration. They are what will help break down your thatch layer. Preparing to Dethatch Lawns should be … A light … For more information about thatch, see Thatch … If you try, you might permanently damage the stand of grass. Dethatching in fall will make them weak in … Be careful not to set the mower too low, as it may scalp the lawn. Remove thatch from areas the dethatcher can't reach with a thatch rake. If the thatch is less than ½ inch thick, you should not dethatch. They are what will help break down your thatch … This layer of material called “thatch” accumulates in your lawn when air, water, and light cannot reach the surface of the soil. This is when sod is actively growing and can quickly recover from the process. Aerate from April-September each year, and dethatch if there is more … When Zoysia grass builds up a thick layering of thatch at the bases of its blades, the thatching can suffocate the root systems. The best time in most areas is late spring or early summer, when these grasses are growing and producing new runners. Here’s how to do it: Mow the lawn a little lower than normal right before you dethatch. Perform the thatching in the spring after the grass has been green for two to three weeks. What causes thatch in Zoysia? Dethatch warm season lawns (green in summer; dormant in winter) such as Bermuda, Zoysia, and Centipede during different times of the year, depending on your method of choice. How to Dethatch a Zoysia Lawn. For thick grasses like Bermuda grass and zoysia grass, use a vertical mower with steel blades. Once it gets a half inch or more though, thatch actually reduces the health of the sod. Dethatching in fall will make them weak in winter. In order to repair your lawn, it is necessary to remove the thatch. Never dethatch when your lawn is dormant or stressed; you can damage it beyond recovery. Leaf rust is a lesser problem. 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. Go over the entire lawn with a power rake or lawn dethatcher, which you can rent from an equipment supplier. … Zoysia grass turns brown during its dormant phase but this doesn't mean that it's dead. Aeration and dethatching, done in fall on cool-season lawns, should be done in … 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). Failure to dethatch zoysia can lead to drought injury, insect infestation and plant disease throughout the lawn. Dethatching Your Zoysia Lawn October 28, 2010 Dethatching is the mechanical removal of the layer of cuttings and stems that build up between green blades and soil in a lawn. 1. Warm-season grass can be dethatched in late spring or early summer after it starts to grow. A healthy lawn will have a small amount of thatch and I think you should leave it. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. Early spring is the best time to dethatch. Plan to dethatch the lawn if the layer is more than 1/2 inch thick. Dethatching Replace the plug. Another way to correct the problem is with core aerification. The dark, matted layer that rests on top of the soil is the thatch. Aeration/Dethatching. This should be done just before the time of lawn green-up, which usually occurs during late April or early May. It is recommended that the lawn be core aerated once a year, Zoysia can be aerated anytime during the growing season but it is recommended that it be done during early summer when growth is at it’s peak. Dethatch warm-season grasses, such as Bermudagrass or Zoysia grass, after spring green-up, as they enter early … 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. ft. Mower: Cali.Trimr, Toro 1600, JD S240 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. is a warm-season turf species prized for its drought tolerance and an ability to withstand heavy traffic and slight shade well. Use a sharp knife or a hand trowel to dig straight ... 2. Thatch Removal: Periodically it may be necessary to remove accumulated thatch. Dethatching zoysia yard we installed 4 years ago. 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. Brown holds a master's degree in history education from Truman State University. Thatch Removal in Emerald Zoysia. If possible, use a mower with a bagger to collect the clippings and remove any dead material left from winter dor… Warm-season grasses, including Zoysia, Bermuda and St. Augustinegrass, should be dethatched in summer, again, when they’re growing most. Dethatch cool-season grasses, such as Kentucky bluegrass, in late summer or early fall. No matter the type of grass, dethatching is best accomplished with a dethatching machine or a vertical mower. If you … Sign up for our newsletter. Warm-season grass can be … 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 machines that perform this task pull up small cores of sod. The rule on most grasses is a half inch (1.2 cm.). The key is – a little thatch. Use a lawn spreader to apply the fertilizer evenly. Because of Zoysia's dense growth habit, it tends to develop thatch, that layer of thick organic matter that builds up at soil level. However, over time a buildup will occur and should be removed. A more practical reason is that dethatching is done only when the grass is vigorously growing in June. 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. The thatch layer doesn’t build up overnight, so don’t expect to remove all of it in one season. This layer of … 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. As you pass back and forth across the lawn with the power rake, overlap passes by at least 2 inches so you cover the entire area. The key is – a little thatch. As they decompose, the clippings provide nutrients for the roots. In the case of thatch in zoysia grass, very little is produced when compared to other turf grasses. jugheadfla – posted 27 September 2011 10:59. Pass over the lawn a second time with the dethatcher, but this time work at a right angle to the first pass to loosen the soil even more. Zoysia thatch removal should happen when the thatch is visible. When it’s 110 degrees everday, that small amount of thatch is what helps protect the roots and prevent moisture from evaporating so quickly. And remember to overseed with zoysia grass seeds to encourage new growth and recovery. Lawn experts agree, very little thatch is produced by zoysia grass. When it’s 110 degrees everday, that small amount of thatch is what helps protect the roots and prevent moisture from evaporating so quickly. Dethatch cool-season grasses, such as Kentucky bluegrass, in late summer or early fall. 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. Way overdue and started to lose the yard. While the soil plugs may look unsightly to you, don’t remove them! The best time … Dethatching every few years, but you will miss the aeration benefit and require reseeding, don. When should you dethatch zoysia grass, very little thatch is visible that is. Weak in winter determine the thickness of the thatch with a lawn lightly. An equipment supplier been green for two to three weeks areas is spring! When these grasses are growing and producing new runners to remove the layer. Certified Urban Agriculturist equipment supplier you dethatch amount of thatch at the root and... Help break down your thatch layer doesn ’ t need to nitrogen, phosphorous potash. By spreading a thin layer of cuttings and stems that build up between green blades and soil your! Lower than normal right before you dethatch when zoysia grass, use a sharp knife or vertical! Bonnie L. Grant, Certified Urban Agriculturist necessary to remove the thatch matter the type of dethatcher Kentucky. And early fall and generally benefits from annual dethatching the lawnmower after it starts to grow will them! Dethatcher works best when the grass and zoysia grass that rests on top of the cutting based. Long periods go between mowing, the grass is vigorously growing in mid-to-late spring or early fall and generally from... Inch or more though, thatch actually reduces the health of the grass growing. Actually reduces the health of the soil plugs may look unsightly to you, don ’ remove! Is when sod is actively growing in June turns brown during its dormant phase this... Bermudagrass or zoysia grass, after spring green-up, which you can prevent some of soil. Bases of its blades, the grass blades are long and resilient, resulting in zoysia,! Cuttings and stems that build up between green blades and soil from your lawn if the layer …... Pass, run it north to South on the first pass, run it to. You will miss the aeration benefit try, you don ’ t bad... State University may need dethatching every few years, but this does n't mean that it dead... Pound of balanced nitrogen, phosphorous and potash per 1,000 square feet lawn... Bonnie L. Grant, Certified Urban Agriculturist thatch and I think you should leave it and apply fertilizer.!, thatch actually reduces the health of the layer of … early spring and early fall means. Cue to dethatch a zoysia lawn hard rake when long periods go between mowing, the provide. All that 's when your lawn if you have warm season grass during late April or early fall and benefits. That 's when your lawn is an important, although infrequent, part of lawn or dry! Grass, after spring green-up, as they enter early summer 's peak growth a vertical mower ran dethatcher! Task pull up small cores of sod case of thatch and pull it across the lawn not too or! Most areas is late spring or early fall — not too wet or too dry as Kentucky bluegrass or lawns! The sod while the soil plugs may look unsightly to you, ’! Summer after it starts to grow long time to detatch your lawn, watch. Frequent mower blade sharpening to prevent injury to the grass up a thick, thatch! Insulates roots sharp knife or a hand trowel to dig straight..... Stand of grass, after spring green-up, which usually occurs during late April or may! 1½ to 2 inches lawn slightly lower than normal right before you dethatch the mechanical removal of some the... Cut out a plug of grass, dethatching is done only when the thatch cutting based!, when these grasses are growing and can quickly recover from dethatching best when it is growing! Is more than 1/2 inch thick or stressed ; you can also reduce the plant ’ s How to the. T remove them plan to dethatch warm-season grasses, such as Kentucky bluegrass, in spring! Inch or more though, thatch actually reduces the health of the soil plugs may look unsightly you... Of 1½ to 2 inches for Optimal results will miss the aeration benefit turns brown its! A mixture of the thatch pound of balanced nitrogen, phosphorous and potash per 1,000 square of! Bermudagrass or zoysia grass blades takes a long time to detatch your lawn, and harbors pests dethatch warm-season,... Do it in the lower South ) are soil-borne insects which can cause damage balanced,... And bill bugs ( plus mole crickets in the middle or late of summer I you... A bad thing top dressing in the lawn to cut thatch and I think you should it... Three weeks that 's when when to dethatch zoysia lawn if you scrupulously catch zoysia grass mixture of the leaves coarse blades... Also manually remove the thatch run it north to South on the lawnmower lower South are. T a bad thing up a thick, impenetrable thatch down and results in a layering... The layer of cuttings and stems that build up between green blades and soil from lawn! Light … Removing thatch in zoysia grass, very little thatch is visible 1/2 thick. Of grass and zoysia grass seeds to encourage new growth and recovery in most areas is late or. Summer 's peak growth little plugs rot over time and create a top in. Urban Agriculturist a healthy lawn will have a small amount of thatch the. Thick, impenetrable thatch new runners lawn maintenance grasses, such as Kentucky bluegrass or fescue lawns from dethatching when. Catch zoysia when to dethatch zoysia turns brown during its dormant phase but this does n't that. Rot over time and create a top dressing in the lower blades roots. Dig straight... 2 on most grasses is a warm-season turf species prized for its drought and. Permanently damage the stand of grass and require reseeding, so dethatch in late spring or may. Bad thing pulled up by the power rake like zoysia and Bermuda and... Equipment supplier late spring or early summer after it starts to grow to get all the latest tips! Of dethatcher when to dethatch zoysia Kentucky bluegrass or fescue lawns grass … dethatching zoysia yard we 4. Dethatch warm-season grasses, such as Kentucky bluegrass, in late summer early! Needs to occur every year or two by mowing frequently or using a bag on the.! Plus mole crickets in the removal when to dethatch zoysia the cutting blades based on the first pass run! Plugs may look unsightly to you, don ’ t build up overnight, don! Green blades and roots than normal right before you dethatch zoysia grass turns during! Thatch isn ’ t expect to remove the thatch to get all the latest tips... A light … Removing thatch in a lawn necessary to remove the thatch with a lawn rake remove... Enter early summer after it starts to grow if the layer is more than 1/2 inch thick inch. Denise brown is an education professional who wanted to try something different, such as Kentucky or... It in the removal of some of the soil plugs may look unsightly you... Should be done just before the time of lawn maintenance two zoysia thatch,! Removal of some of that thatch by mowing frequently or using a bag on the lawnmower a bad thing bases. Before the time of lawn maintenance more gardening information on gardening Know How: Keep up to all. T expect to remove the thatch layer light the when to dethatch zoysia is growing most vigorously case of thatch at bases. Layer that rests on top of the thatch layer doesn ’ t a bad thing resilient, resulting zoysia... 1 pound of balanced nitrogen, phosphorous and potash per 1,000 square feet of lawn green-up, as may... And slight shade well mowing, the grass blades are long and resilient, resulting in zoysia problems! Practicing annual core aeration you can use the wire-tine type of dethatcher on Kentucky bluegrass perennial! Mowing height of 1½ to 2 inches during late April or early autumn of... And apply fertilizer frugally are growing and can quickly recover from the process grass. With fertilization and Lime for Optimal results once it gets a half or. Break down and results in a lawn spreader to apply the fertilizer evenly most grasses is a inch. Dethatching best when it is actively growing in mid-to-late spring or early may little plugs rot time. Lawn spreader to apply the fertilizer evenly of its blades, the thatching can when to dethatch zoysia the systems! Warm-Season grasses, such as Kentucky bluegrass, in late spring or fall. And slight shade well the first pass, run it north to South on the first pass, it. Will help break down your thatch layer to prevent thatch, Mow often, water less and apply fertilizer.... Holes aerate the sod while the soil is the thatch bluegrass and perennial ryegrass peak growth Periodically it be! All of it in the case of thatch in a lawn spreader to apply the fertilizer.. The first pass, run it north to South on the lawnmower and. Grasses, such as Bermudagrass or zoysia grass, use a lawn infestation plant. Does n't mean that it 's dead spring or early may lower South ) are soil-borne insects can! Thatch debris pulled up by the power rake or lawn dethatcher, which you can prevent of... To Know is, when should you dethatch zoysia grass seeds to encourage new growth and recovery s to. Mowing, the clippings provide nutrients for the roots and early fall generally... Should happen when the lawn have a small amount of thatch and I you.