But this is very unlikely if you’re buying the compost from a reputable source. Here's our view on the best worm composter money can buy today. Wondering whether topsoil or compost is best for new grass seeds? Tilling the lawn and mixing compost into it at the same time is another method you might see suggested. After you have removed as much sawdust as possible and any debris and larger pieces of wood, turn over the topsoil with a shovel, apply a slow-release grass fertilizer before sprinkling your grass seed liberally over the area. The best time to add topsoil to a lawn is a few weeks after the grass has begun growing actively. It’s too potent and expensive to be used as the sole medium for most yard projects. It can take years to create finished compost, so it requires some planning! Sow seed grass over a lawn area by feeding it into a rolling broadcast spreader. there was still grass in the ruts (for the most part), and I just filled the area with fresh topsoil. Prepare the Site Before adding topsoil, grading the lawn ensures water will flow away from buildings. It’s then sold as it is (budget topsoil) or screened to remove the debris and sold as premium topsoil. Long story short, my neighbor hired a tree company to cut down trees in his backyard, and they drove thier trucks and equipment across my front yard to gin access and left ruts all over my front yard. Also, unless you properly level and compact the soil after tilling, you risk ending up with a very bumpy lawn. It will be a waste of time and investment over time. Topsoil adds nutrients to the dirt and is typically used for gardens and plant/grass growth. If you're wondering why your compost has suddenly clumped into balls, look no further. In terms of texture, topsoil has a better structure than pure compost and retains more water. (Grass and weeds will grow through soil 2 or 3 inches thick quite easily.) Grass needs a good, consistent supply of moisture to grow, so the soil you plant your grass seeds in should always be wet. If any of the ingredients used were contaminated with chemicals, then traces of these chemicals can remain. So what i would do is buy some environmental safe grass/weed killer and kill the grass first, then put more than ground level top soil over it, just in case it rains :s. now just sit and watch the grass grow back!!!! Once you add more than 3 or 4 inches of soil, the amount of weeds and grass that will grow through starts to drop off dramatically. The new layer of topsoil will allow the roots to anchor well, and the compost will supply much-needed nutrients to feed the grass as well as protecting it from hungry birds. You can always mix some compost in with topsoil if you want to ensure high levels of organic matter within your topsoil layer. If you overwater your seeds, the soil goes from being damp and moist to being heavy and wet. However, overwatering your grass seeds will actually kill them, because grass needs both moisture and oxygen. Tilling a lawn is a very labor-intensive work and can create a weed problem by unearthing weed seeds that were previously buried too deep to germinate. This is because grass (and other weed seeds) can germinate and grow within the mulch itself, and grasses can send roots into the mulch and start to grow. You may want to apply more seeds to the new soil. I don't know if it would grow through, especially young grass not well established. Tilling the lawn might sound like a good idea, but we don’t recommend it. A healthy lawn will have a topsoil layer between 5 and 10 inches thick. If the grass is already in place then a balanced chemical fertiliser would have a quicker effect but if the grass has not been sown then good compost mixed in the topsoil will be a benefit. Basically the grass will not grow if no grass maintenance has been completing prior to planting and it is just thrown on the ground. When we were redoing our lawn, we found lots of conflicting information on the web about whether we should be using topsoil or compost for laying grass seeds. For young grass seedlings just emerging, it is likely so smother them but eventually the grass will fill in. The best time for seeding your yard is very early spring or else mid-fall. As a result, topsoil creates an ideal place for plants to take root, grow … Now for topsoil. Our Top 6 Picks, The 12 Best Chipper Shredders For Composting [And 1 To Avoid]. Food for thought? Make seeding success is made more permanent -- and you'll save considerable annual labor -- by working 1 to 2 inches of a combination of well-rotted compost and topsoil into the top 4 inches of clean fill. But really....what are your choices....do you want to fight puddles forever or go ahead and knock the problem out now while the yard is in disrepair anyway. What i therefore hoped to do was buy some more top soil to build up those areas, which i thought i could put over the existing grass and then reseed. if you have a sieve apply the soil to low spots over couple of weeks so to let grass seedlings to keep growing if you saw them now roots will be nothing and need sun on leaves if cut out light ie cover them then you should reseed those spots. Yes, your existing grass will grow through quite nicely, given that the whole process of topdressing is carried out correctly. It can be confusing to know which one you should use and when. will the new grass die or grow through the new top soil? Of course, if you make it yourself, it’s free, but most people don’t generate enough waste to produce large quantities. 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