Hi, can I lay new sod over existing grass, or does the ground have to be absolutely clear of grass, weeds before putting down the new grass.? St. Augustine is … But can’t I lay sod over my existing grass? OK, so I found Bahai Grass. That said, I have an acquintance who replaced their Bermuda lawn with St Augustine grass. Though it is generally thought to be OK to lay sod over an existing lawn, some landscapers and homeowners prefer to remove any existing lawn before installation of sod. Mow lower areas if possible with a reel mower. The answer depends on the percentage of wood chips compared to the percentage of topsoil under the sod. Effects If the environmental conditions favor one grass species over another, "choking out" may occur. Many homeowners want to avoid the extra work involved in removing existing lawns to install new sod. The previous owner laid down a ton of mulch to try and kill it off, but it is so embedded that it is just coming through. St. Augustine grass is a type of warm season grass that is popularly grown in the southern regions of the United States. However, there are still other things to consider that we will cover in this section. “All sod must make soil contact to root,” she points out. Sod provides a quicker alternative when establishing a lawn. We will use the rakes to do final grading and then water the soil and install the new sod. Plant St. Augustine grass during summer. Also, Brown Patch is a common problem in St. Augustine lawns, especially if they are over-watered. St. Augustine is a much wider-blade grass that also enjoys full sun but has the highest shade tolerance. Laying Down St. Augustine Sod. If you have a few inches (75mm or more) to fill in, you can most definitely remove the sod, fill underneath, then lay … Sod, though, can be applied directly over existing grass.” The author went on to write: “Professional landscapers often apply sod directly over grass. I'm looking for the least expensive option and best lowest maintenance grass and considering bahia. Don’t Lay Sod Over Mulch. If we leave existing grass could we lay a different type of grass over the existing grass? As a rule, the more plugs, the better. Gardeners enjoy this grass type for its compressed grass blades that contribute a dense texture for lawns. The sod needs to be in contact with soil. Plant St. Augustine grass plugs or sod in full sun, at least 90 days before your region’s first estimated fall frost, to give the grass … Click to see full answer. However, this method is usually more expensive. “In no situation should sod be installed over existing grass, said Michele Gibson, co-owner of DG Turf Farm, a third-generation sod farm in Greenleaf, Idaho. Using a glyphosphate like Round Up you can spray your existing lawn, and sod over the dead grass. I was thinking about installing directly over the dead bermuda, but … Laying down sod is often a quicker way to plant St. Augustine grass. This option will save you money on excavation costs of removing the old soil and grass. Reel mowers can be gradually reduced to 3/4 to 1/2 inch over time. Starting over may be the best way to get rid of perennial grassy weeds such as Nimblewill, Bentgrass, Tall Fescue clumps, or Quackgrass that you can’t kill without killing your good grass. Thanks! The best way to add topsoil to your lawn without damaging your grass is to topdress the lawn with topsoil that matches the lawn's native topsoil. While you can purchase a pallet or a half-pallet of St. Augustine grass, keep in mind that a full pallet is 450 squares of grass. Till the ground and lay your sod old soil and install the new sod probably! Stenotaphrum secundatum ) is a much wider-blade grass that is popularly grown in the warmth of spring and,. 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