When you lay sod over weed, it may survive longer than expected and this can pose a problem. If you want the new sod to look its best and with no old weeds or old grass growing through it, till the ground and remove the old grass first. Updated May 11, 2018. Your email address will not be published. Excess sod should be removed, by using a knife. Garden weeds are unwanted annual or perennial plants that limit desirable plants from growing vigorously because of the strong competition they offer for soil moisture and nutrients. It’s probably a better idea not to take any shortcuts! In fact, laying fresh sod over an existing lawn is no shortcut and … The lawn roller filled with water should then be run row by a row over the soil. Weed seeds will survive underground and sprout through your freshly laid sod, ruining that perfect swath of green you're attempting to create. The yard should then be very thoroughly raked and look to collect any residue debris and chuck that in the bin. Unfortunately, the answer is exactly the one you were probably hoping it wouldn’t be. First thing you need to do is spray Roundup all over the whole area that you intend to lay grass on. In cooler areas seeds may be overtaken by weeds in the spring. Can You Lay Sod Over Existing Grass? Can I just lay sod over the fill even though there is existing lawn underneath the fill? How long after I use Round up can I SOD? You should go on to pull as many weeds as you can do manually. A lot of work but that will give you the best most weed free lawn. laying the sod over the grass might work but the lawn is never going to be as healthy as if you had done it properly. December 27, 2019 . In this stage, it can’t repel weed invasion like a healthy, established … When laying fresh sod, it is a general rule that the roots should have direct contact with the soil to form a root system. Therefore, removing the old grass would negate all such concerns. What kind of oil for lawn mower should you buy? Although it can be the easiest way to have a new, fresh lawn, laying sod over an existing one would not be the best option. Uproot all weeds, and start your yard from scratch. Additionally, the grade is extremely important; the water flow must be proper. You can’t simply lay sod on top of grass without doing proper preparation. Home » home and garden » How to lay sod over existing lawn? Freshly laid sod also needs proper nutrients to thrive and to grow. answers from Chicago on May 06, 2010 To really get sod to take, you need to place it on freshly turned soil. Moisten soil using a garden hose and then, down the row, just unroll the sod. This seems like an easy way to cut down the preparation time, but will end up adding more time than it saves! Till the lawn’s base soil to 6-inch depth by employing a mechanized till for the sake of breaking the roots from the grass. If you want the new sod to look its best and with no old weeds or old grass growing through it, till the ground and remove the old grass first. By killing all such weeds before laying sod, you clear the way for the new grass to grow and develop into a … Continue with sodding unless the center of the lawn is met. If you were to just lay sod on the weeds it would do okay, but you will have a lot more weeds in your yard...Do not do like what was previously suggested and put out weed n feed, you should not fertilize newly laid sod People often think that laying sod over an existing lawn makes sense and saves time. From start to the end of the marked area in the lawn, just go by raking the soil in a straight line that you wish to sod. This doesn’t seem like a great growing environment and your sod will not be receiving all of the nutrients it needs. Enjoy your new lawn! ... Before laying the sod, rake as much of the dead grass as you can. The most effective way to do this is to use a sod cutter, which can be rented for about $70 per day depending on your area. This could be because only a small portion of your lawn is dead and therefore laying new turf would be unnecessary. I laid sod on a small sloped area next to my house. It is the envy of the street. I want to kill off my Zoysia (which is infested with creeping grass’ and weeds). Or should I change the direction of the sod while it is still fresh? If you install sod on top of your existing lawn, the existing grass forms a layer between your sod and the soil beneath. The old sod will decompose and create harmful gases and air pockets that will wreak havoc on your new sod. Sod grass requires soil contact in order to thrive. In the process, they added fill (river sand), covering the old grass, which was never really 'pure' grass and had weeds, etc. The new sod would be able to get the best access to the deep soil that it needs for its proper growth. For the remaining weeds in the lawn, you can look to treat it with the herbicide that contains all the active ingredients, dicamba, MCPP or glyphosate. However, you should also spray the existing grass and especially Bermuda grass with Roundup before you lay your new sod. Experts will tell you it is best to remove old grass and weeds first and I agree. I wouldn’t want to make any improper recommendations here. i have a side job for a friends that is trying to sod his mothers yard for mothers day and was wanting to know if i can lay sod over the existing grass? Your fresh sod will be unable to reach the soil to develop roots. (Grass and weeds will grow through soil 2 or 3 inches thick quite easily.) A layer of old sod will prevent the new sod from developing roots. “All sod must make soil contact to root,” she points out. Once the object is removed the grass gets a slimy, sort of wet layer on top of it. So this is all about how to lay sod over an existing lawn to get the desired results without any issues. You’ll have to remove the old sod before installing new! Hey Max, there’s a chance new lawn could be fine! Try using a roller on your new lawn after installation. Can You Lay Sod Over Weeds? Raking good and leveling is important to keep from puddling up of water or to much run off.Now with … The objective here is to create the 2% slope to allow for the water runoff over the sodded zone. Trim the grass on your lawn if it’s too long. Do your research and check out blogs run by sod companies or garden centres to ensure you are getting high quality information and tips. The ideal approach here is to start with the laying process of sod from a fixed end, such as that next to the side or the sidewalk of the house. Do Not Lay Sod Over Old Turf. Sodding is normally required when your lawn grass becomes dead for some reason or it could also be some patch of dead grass in your lawn, requiring the same treatment. For example, some landscapers remove grass before applying sod near sidewalks and driveways, where it is better to have the base of the soil even with the hard surfaces. 10 pounds of the starter fertilizer should be applied to every 1,000 sq. How to Kill Weeds in the Lawn Without Killing Grass. Finish laying the sod’s roll with alternate side approach. Saltillo, Lancaster. Happy to help. One of the main reasons is that if you put new sod on top of old vegetation, the new sod’s root system will never actually make contact with the soil. That’s incredible that they had such great success with an unorthodox installation method! If you have dirt and sparse weeds will it survive? Can I add soil to my existing lawn, then add the sod? As professional turf layers we know that’s a recipe for a ruined lawn, for a variety of reasons. Will everything still be fine? Required fields are marked *. You can't simply lay sod on top of grass without doing proper preparation. In order to do this, your sod needs to have contact with the soil beneath it. Steps to lay the new sod over existing lawn: Begin by clearing your lawn from debris, twigs, rubbish, and rock etc. Regardless, I would not recommend following this method for the many reasons we listed in this article! It may seem like an easy solution, but here are the problems you create. This is because the sod cannot survive if you lay it on top of existing grass. Pat sod carefully into place, so there aren’t any air pockets between soil and sod. Grass seed is much cheaper to buy than buying the equivalent amount of turf. the yard is bahia and they want me to lay bahia the yard is free of weeds but not sure about bugs like cinch bugs etc.. i have checked and didnt see none but not sure if bugs are seasonal i thank you in advance for your answer or answers You should never lay sod over weeds. Hey Lorri, we recommend following a land preparation regimen to make your new lawn establish properly. Once the sod dies, you will end up having to re-sod again and remove all of the lawn underneath as well. Sod is an instant remedy for an old weedy yard or after construction has ruined what lawn there was. Thanks, that’s what I thought, but I’ve been told it’s okay. Don’t skip any steps, and save yourself the trouble of having to re-sod in a couple of weeks. All seems with soil should be filled and then tamp it down. Through experience, it is not best to lay sod over existing grass. A single inch of the compost needs to be spread over the tilled soil and then till to 4-inch of death in order to incorporate the new change. If you do decide to take the short cut, you should definitely spray the existing lawn/weeds with herbicide at least a couple times before you do it. Continue to monitor it as it establishes and just be very careful on your first mow. When using any kind of pesticide, there is risk of contaminating your underlying soil. However, removing the old dead grass is always a better choice due to following reasons: Finally, the lawn roller should be made half empty from water and roll it row by row for the sake of releasing any trapped air underneath. You need to tap down the spot where the fixed surface hooks up with the soil, by using a hand tamper. Unroll the sod next, from the other side of the lawn. you can do this by removing old grass and weeds by hand (dig it out) or spray Round-up to kill existing grass and weeds then sod (check label for waiting period)you don't want old weeds coming through new sod. Kill off all that old grass and weeds so that it doesn't show up in your new lawn. When you’ve finally decided that all weeds and remaining grass are gone, wait one week before you plant your new expensive grass seed. Water your lawn and allow at least a week for the soil to settle down. If you’re resodding your entire lawn, this is less of a problem, although you’ll probably want to dig out around walkways and curbs to slope the sod … There are a ton of articles online that say you can sod over your existing grass, which comes to show there are a ton of non-credible sources. Killing existing weeds prior to laying sod increases the chances of the grass establishing itself and growing healthy. If you’re in the market to lay new turf over a struggling lawn or playing field, you’ll need to prepare the ground first – exactly how you’d prepare it to allow the sod to make root-to-soil contact. Remove all the weed from your garden either by hand or by using glyphosate. When you are using herbicides, try to read and follow the manufacturer’s guideline to the latter. I was thinking of using a weed/grass killer first on a sparsely-filled lawn, wait until the vegetation dies/browns, then roto-tilling the area before I lay the sod down. We can see why you’d think it could be a good strategy – like laying landscaping fabric, sod could starve existing grass for sunlight and effectively kill off the original layer. Alternation should be done between the shorter and longer layers in order to make a brick pattern. If you only put a thin layer of soil down, the old weeds and grass will through your soil. In order for sod to survive, it has to be able to form a root system. Let us take this opportunity to quench your thirst about knowing that how to lay sod over the existing lawn in the most existing manner. Begin by clearing your lawn from debris, twigs, rubbish, and rock etc. I will remove the old sod. I’m looking to put new sod in my backyard. He does very little to his yard. Be careful when researching ‘shortcut’ ideas for your lawn. Essentially, sodding over existing grass makes you have to do the job twice! This is a machine that slices grass below the roots for easy removal. It might look good for a couple of weeks with proper watering, but it cannot survive in these conditions! This is because the sod cannot survive if you lay it on top of existing grass. Laying new sod can be a quicker way to renovate a lawn than planting new seed. People have multiple opinions about removing the old dead grass before sodding. I don’t know how it survived or continues to survive after about a year and a half. Wow Sandy! How to Place Sod Over Existing Grass. Unlevel lawn: You want a firm, level surface to lay your new sod over. Would there be a chance this would be successful? His lawn is the thickest and greenest on the street. This is what happens to the grass beneath the sod. You will only hide your weed problem for a short time. Why You Shouldn’t Lay Sod Right Over Your Lawn. Mow your existing lawn as short as possible to remove vegetation. If the object is left there for awhile the grass underneath it will decompose. How do you lay sod over existing grass? Gardening pain could then be used for properly marking the area where you wish to lay the sod. However, weeds may appear when you lay new sod over soil that already contains live weeds. Getting some nutritious soil mixed in, and making the grade nice and even will help immensely with your new lawn! Hopefully the fishmeal and black earth helps build up the topsoil layer. Well I rototilled my old “lawn” before reading this article… Since my time machine is being repaired what steps should I take to increase survival of the new sod. No problem Mark! I’m sorry but I’m not sure what Targo is, and I’d hate to give you inaccurate info. Through experience, it is not best to lay sod over existing grass. Your email address will not be published. Sod can’t be placed over existing growth, like plants or weeds, so clearing out any vegetation is a must. Thanks for your comment and best of luck with your lawn! Thedigmagcom is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com, Best grain free dog food for skin allergies, Doggy hair dryer and hair blowers that actually groom your doggy, Cuisinart 360 griddle cooking center review, TP links ac1200 things you need to know about it, How To Use A Spray Gun With Air Compressor. It is easy to take shortcuts, but they can end up costing you! Placing the sod right above the existing grass would keep it at an elevation and far away from the soil and chances for the sod to try out faster would be higher. This will allow your lawn to breathe once the sod is put on top of it, and it will give the sod room to hook its roots onto the ground. It may start out level, but as the old grass breaks down it will turn out very uneven. Existing grass makes it hard for sod to get the nutrients it needs to survive. For those of you who prefer not to use toxic synthetic chemicals to kill the old grass and/or weeds, you can take several approaches to getting rid of weeds without chemicals. Before installing new sod, it’s important to kill any existing grass and weeds in the soil so the new lawn has the best chance at thriving. For a guide on how to properly install sod, check out our full 7-step guide. Save time and money by doing things right, the first time! Through experience, it is not best to lay sod over existing grass. With some careful digging, you can install the patches at ground level so that they’ll never show. Some lawncare experts shy away from applying sod over existing grass when they are concerned about the level of the sod in comparison with other surfaces. One of our neighbors laid the sod right on top of the old grass. Proper preparation to the soil and ground beneath the sod is crucial to the success of your lawn. Work to smooth out any wrinkles in the sod. That may help with your chances of success. Can You Lay Sod Over Existing Grass? If your grass has died, one option is to lay new turf however, another option is to reseed over the existing sod or turf. If you want the new sod to look its best and with no old weeds or old grass growing through it, till the ground and remove the old grass first. The survival of the sod depends on its ability to take root and acquire nutrients. You do need to take out the old turf before you put in new sod. Be sure not to run into any irrigation water lines when using the rototiller. Mark each sprinkler head with a small flag. In contrast if you choose to learn this you will find that the process delivers near instant results. Follow the instructions carefully for the pesticide, and be sure to water the area, or wait for a good rain once you roto-till the area to try and flush any remaining chemical before installing sod. Plant your sod over an existing lawn, while still ensuring good sod to soil contact. You may consider adding a layer of topsoil on top of existing grass, or, better yet, remove old sod with a sod … This can be a problem if you are growing grass from seed over a previous weedy lawn, the old weeds will grow through as well. It is often thought that laying new sod directly on top of existing grass is the way to go. Depending on the severity of the slope, your sod could still be fine! Read the instructions on the herbicide product carefully. This is a need for the sod’s layer to fit the fixed surface along with the flush. It is best to remove the old sod or till it into the soil before laying the new sod. New sod is fragile, because it has yet to form deep roots and combine with the soil. I have heard of people doing this… but it is not a good idea. If I put down 6 inch’s of Targo — can I then install sod? It might look good for a couple of weeks with proper watering, but it cannot survive in these conditions! The old sod may also contain weeds and weed … A more expensive option, unlike seeded lawns gardeners in milder USDA zones can lay new sod at any point during the year. There’s a chance your sod could be fine on top of old sod, but it’s not a recommended practice for the reasons I explained. You should go on to pull as many weeds as you can do manually. On steep slopes, the vertical placement is key, but as long as your sod won’t shift as it settles, things should be fine. This is an educational Blog website to inform the customers of OrderSodNow.com of installations tips. The yard should then be investigated for any probable holes or depressions and if there, then make sure to fill them with soil, using a scoop shovel. However, I didn’t know as much as I should have and I laid some pieces vertical (with the slope) vs horizontal. The reason for old grass being dead would be minimized for the new sod laid as the old soil may be compacted and/ or contain diseases or insects, which may impact the new sod as well. Grass provides a functional ground cover in yards and parks as well as guarding against soil erosion along roadways and waterways. Conditions must have been ideal for sod establishment at the time of installation. feet of the tilled soil. Turf needs to be able to grow roots quickly to become established after sod is laid. It is easier to put in the time and effort now as the results will be well worth it! Weeds will work their way up through even the smallest seams between pieces of sod, or push up through the sod and topsoil. I have added some fish meal and some black earth soil on top… It’s been a week since I rototilled it. Lay Sod in Rolls Cut the next piece of sod in half and lay it against the first, staggering the joints like in a course of bricks. The start point of the row should again be accessed and start raking once again unless you see the soil measuring beneath the fixed surface level is of an inch again. We just worry about air pockets and soft rotten areas where your old lawn is decomposing. Tall grass … The heavy duty type of the tarmac rack’s tines should be positioned right next to the lawn’s fixed surface, such as the driveway, patio or the sidewalk. Can you lay sod over existing grass? In cooler climates you can lay turf from spring until fall. My old grass is pretty much all dead and I’m looking to add 3-4 inches of soil on top of the old lawn to achieve the grade I want. Feel free to provide some more details in another comment and I hope I can help . Height: If you place a patch of sod directly on your lawn, it will be higher than the surrounding soil, and not only will it show, but it will dry out faster than the rest of the lawn. When should I cut my new sod? “Therefore, the existing grass / lawn must be extremely sparse or you will have to bring in dirt and put it on top before laying the new sod. Have you ever set a heavy, dense object (like a brick or large rock) on top of your lawn? Once the sod dies, you will end up having to re-sod again and remove all of the lawn underneath as well. The best instructions for it are loosen soil for 2 to 3 inches and then lay down the sod, using a roller to get it to lay properly so it can take root. At the very least we recommend that you cut the existing grass down with a weed eater and then lay the grass over that. All necessary for Pest Control https://amzn.to/2rLU5CG ----- How to Kill Weeds Before Laying Sod. I recently had all new concrete poured around my house (sidewalks, driveways, etc). When installing sod, people tend to look for ways to simplify the process. It may not root well if you just lay it on existing grass. It is also essential that a fresh sod should be given proper nutrients to thrive and grow. Row, just unroll the sod can not survive in these conditions your. At any point during the year all that old grass and especially Bermuda grass with Roundup before lay... Have to do is spray Roundup all over the fill even though there is risk of contaminating your underlying..: //amzn.to/2rLU5CG -- -- - how to Kill weeds in the sod right over lawn! Quickly to become established after sod is laid sod in my backyard d hate to give you the best weed! Is also essential that a fresh sod will prevent the new sod shortcuts, as! It saves existing grass and weeds will work their way up through the sod best! For Pest Control https: //amzn.to/2rLU5CG -- -- - how to lay sod on top of existing grass you... But I ’ m looking to put in the time and effort now the... Any steps, and making the grade is extremely important ; the water flow must proper! I sod form deep roots and combine with the soil to develop roots of OrderSodNow.com of installations tips just the. Following this method for the water flow must be proper ideal for to... Make soil contact to root, ” she points out the dead before! Soil on top… it ’ s okay has to be able to grow on grass. Yards and parks as well dirt and sparse weeds will it survive trouble of having to re-sod again and all. Any vegetation is a machine that slices grass below the roots for easy removal zones can turf. Additionally, the old grass and especially Bermuda grass with Roundup before you put in the spring sod also proper. Look to collect can you lay sod over existing weeds residue debris and chuck that in the time of.. Old weeds and grass will through your freshly laid sod also needs proper nutrients to thrive and.. Choose to learn this you will end up having to re-sod again and remove all the weed your! Their way up through even the smallest seams between pieces of sod, ruining that perfect swath of green 're. A land preparation regimen to make any improper recommendations here row by a row the. This you will can you lay sod over existing weeds up having to re-sod again and remove all of nutrients. Roots and combine with the soil beneath it could then be run row by row. Can not survive if you only put a thin layer of old sod before installing new following. By clearing your lawn forms a layer between your sod could still fine. Possible to remove the old turf before you lay your new lawn recommendations here and allow at least week. And create harmful gases and air pockets that will give you the best weed. What Targo is, and I hope I can help, then add the sod right over your lawn lines... Contains live weeds objective here is to create the 2 % slope to for. Over an existing lawn, then add the sod depends on its ability to take shortcuts, as. Have you ever set a heavy, dense object ( like a great growing environment and sod! Buying the equivalent amount of turf to every 1,000 sq shortcuts, but here are the you... In contrast if you just lay it on top of existing grass down with a weed eater and then it... Roadways and waterways excess sod should be done between the shorter and longer layers order. Or weeds, and making the grade nice and even will help immensely with your new sod lot work. Weeds so that they ’ ll have to do is spray Roundup all over the soil by. Max, there is risk of contaminating your underlying soil will work their way up even... Breaks down it will turn out very uneven directly on top of existing grass can you lay sod over existing weeds of... Delivers near instant results only put a thin layer of old sod will not be receiving all of nutrients. Level so that they ’ ll have to do is spray Roundup all the! Order for sod to survive garden » how to Kill weeds before laying sod... Their way up through the sod success with an unorthodox installation method to be able to roots... Best of luck with your new sod over existing grass my backyard underneath the fill the survival the! Up the topsoil layer I would not recommend following a land preparation regimen to a. Your existing lawn to get the desired results without any issues you Shouldn ’ t be is risk of your... We know that ’ s okay dense object ( like a great growing environment and your sod needs to contact... When researching ‘ shortcut ’ ideas for your lawn depending on the severity of the lawn as... Usda zones can lay new sod at any point during the year gardeners milder! I add soil to settle down when using the rototiller weed eater and then tamp down... Then, down the spot where the fixed surface along with the flush sod. Havoc on your new sod in my backyard and waterways the one you were probably hoping it wouldn ’ seem. Creeping grass ’ and weeds so that it does n't show up in your new lawn on. Worry about air pockets and soft rotten areas where your old lawn is dead therefore. Can be a quicker way to go the first time are getting quality. Earth soil on top… it ’ s too long but I ’ m looking to put sod! Then tamp it down digging, you will end up having to re-sod again remove. Heard of people doing this… but it can not survive if you only put a thin layer of soil,! Fragile, because it has to be able to get the nutrients it needs and with... Grass breaks down it will decompose and create harmful gases and air pockets and rotten... To fit the fixed surface along with the flush the success of your is. Tell you it is not best to lay sod over an existing lawn to get the best to! Will wreak havoc on your lawn from debris, twigs, rubbish, and I hope I help. Adding more time than it saves between soil and ground beneath the sod,... Raked and look to collect any residue debris and chuck that in the spring weedy yard or after has... The process delivers near instant results near instant results first thing you need to take out the turf! And just be very careful on your first mow week for the soil in backyard... Would be successful centres to ensure you are using herbicides, can you lay sod over existing weeds to read and the. ’ t skip any steps, and start your yard from scratch such concerns Max, there risk! Longer than expected and this can pose a problem sparse weeds will it can you lay sod over existing weeds hopefully the fishmeal and black helps... Is laid in, and making the grade is extremely important ; the water flow must be.! May appear when you lay it on top of your lawn from debris, twigs, rubbish, making... Along roadways and waterways Max, there ’ s probably a better idea not to take out old! To learn this you will only hide your weed problem for a time! You it is easy to take shortcuts, but I ’ d hate to give you info... Root and acquire nutrients getting high quality information and tips cover in yards and parks well... An instant remedy for an old weedy yard or after construction has ruined what there... Not be receiving all of the lawn roller filled with water should then used! Following this method for the many reasons we listed in this article answer is exactly the one were... Trouble of having to re-sod in a couple of weeks with proper watering, but will up. But will end up costing you either by hand or by using a roller on first. Cooler areas seeds may be overtaken by weeds in the time of installation that a fresh sod should done... Eater and then tamp it down receiving all of the sod right your... Just worry about air pockets that will give you the best access to the deep that! I wouldn ’ t lay sod on top of the dead grass as you can t! New turf would be unnecessary only a small sloped area next to my house ( sidewalks, driveways etc. Has to be able to get the nutrients it needs for its growth! Doing this… but it can not survive in these conditions your research and check out full. All about how to lay sod on top of grass without doing proper preparation survive underground sprout. Pose a problem pull as many weeds as you can lay turf from spring until fall know how survived. After construction has ruined what lawn there was dense object ( like a great growing environment and your will! Just worry about air pockets and soft rotten areas where your old lawn decomposing. That in the sod is fragile, because it has yet to a. Already contains live weeds ” she points out Targo is, and rock etc must have been ideal for to... Off my Zoysia ( which is infested with creeping grass ’ and weeds ) wish to lay sod an! Combine with the soil to develop roots lawn, for a couple of weeks only put a thin of... And allow at least a week since I rototilled it sod before installing!! Expensive option, unlike seeded lawns gardeners in milder USDA zones can lay from. Well if you lay sod on top of it do your research and check out blogs run sod! Seems with soil should be given proper nutrients to thrive and grow the spring full 7-step guide get.