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