This is an educational Blog website to inform the customers of OrderSodNow.com of installations tips. It is easy to take shortcuts, but they can end up costing you! 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. Depending on the severity of the slope, your sod could still be fine! However, weeds may appear when you lay new sod over soil that already contains live weeds. Unfortunately, the answer is exactly the one you were probably hoping it wouldn’t be. Be sure not to run into any irrigation water lines when using the rototiller. 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. 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. In order to do this, your sod needs to have contact with the soil beneath it. Try using a roller on your new lawn after installation. I’m looking to put new sod in my backyard. It is best to remove the old sod or till it into the soil before laying the new sod. 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. Don’t skip any steps, and save yourself the trouble of having to re-sod in a couple of weeks. Weed seeds will survive underground and sprout through your freshly laid sod, ruining that perfect swath of green you're attempting to create. How to Place Sod Over Existing Grass. However, you should also spray the existing grass and especially Bermuda grass with Roundup before you lay your new sod. Do your research and check out blogs run by sod companies or garden centres to ensure you are getting high quality information and tips. In the process, they added fill (river sand), covering the old grass, which was never really 'pure' grass and had weeds, etc. 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. “All sod must make soil contact to root,” she points out. It’s probably a better idea not to take any shortcuts! Or should I change the direction of the sod while it is still fresh? I have added some fish meal and some black earth soil on top… It’s been a week since I rototilled it. Can you lay sod over existing grass? You may consider adding a layer of topsoil on top of existing grass, or, better yet, remove old sod with a sod … How do you lay sod over existing grass? 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. Home » home and garden » How to lay sod over existing lawn? Tall grass … I don’t know how it survived or continues to survive after about a year and a half. That’s incredible that they had such great success with an unorthodox installation method! It is easier to put in the time and effort now as the results will be well worth it! 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. feet of the tilled soil. In this stage, it can’t repel weed invasion like a healthy, established … I recently had all new concrete poured around my house (sidewalks, driveways, etc). It is also essential that a fresh sod should be given proper nutrients to thrive and grow. Grass provides a functional ground cover in yards and parks as well as guarding against soil erosion along roadways and waterways. Can I just lay sod over the fill even though there is existing lawn underneath the fill? 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. Sod grass requires soil contact in order to thrive. I want to kill off my Zoysia (which is infested with creeping grass’ and weeds). Getting some nutritious soil mixed in, and making the grade nice and even will help immensely with your new lawn! Laying new sod can be a quicker way to renovate a lawn than planting new seed. However, I didn’t know as much as I should have and I laid some pieces vertical (with the slope) vs horizontal. 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. I wouldn’t want to make any improper recommendations here. Why You Shouldn’t Lay Sod Right Over Your Lawn. I laid sod on a small sloped area next to my house. This could be because only a small portion of your lawn is dead and therefore laying new turf would be unnecessary. No problem Mark! 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. 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. Gardening pain could then be used for properly marking the area where you wish to lay the sod. Can You Lay Sod Over Existing Grass? 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. Hey Max, there’s a chance new lawn could be fine! ... Before laying the sod, rake as much of the dead grass as you can. You can't simply lay sod on top of grass without doing proper preparation. Once the object is removed the grass gets a slimy, sort of wet layer on top of it. We just worry about air pockets and soft rotten areas where your old lawn is decomposing. 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. In cooler climates you can lay turf from spring until fall. 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. Any steps, and making the grade is extremely important ; the water runoff the... Risk of contaminating your underlying soil rake as much of the nutrients it needs a heavy dense. Water should then be run row by a row over the whole area that you cut existing... M sorry but I ’ d hate to give you inaccurate info agree. 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