Getting rid of crab grass can be done by pouring boiling water over the roots and diligently recovering the area with topsoil and grass seed until the crab grass is completely eliminated. Kill unsightly crab grass in a lawn with plant tips from a sustainable gardener in this free video on gardening.
Hi, this is Yolanda Vanveen and in this segment we're going to talk about how to get rid of crabgrass. Now crabgrass looks a lot like the grass that grows in your lawn but it's pretty distinguishable because it grows more like a big spider. So you have a nice set of grass and then all of a sudden you've got this big spidery thick piece of grass in the middle that isn't growing straight. It kind of grows out and it doesn't look very appealing. So how to get rid of it organically or how to get rid of it without using chemicals. So, there's a few easy ways to get rid of it. First of all, a trick I've found is just take boiling water and pour it right into the middle of the crabgrass where the roots are because it will die immediately. So you just pour boiling water right onto the crabgrass. Now what happens is that it kills the crabgrass and will kill some of the grass around it but when it fills in a lot of the times you won't have the crabgrass. But the easiest way that I've found to get rid of the crabgrass is to be diligent because it might take you a couple of years to get rid of all of it. But every spring and every fall put some compost or potting soil right over that crabgrass and add just tons of grass seed, perennial grass seed, whatever kind works best in your climate. And make sure, and thickly add just tons of grass seed. I do that to my lawn anyway, all over. And wherever there's a dead spot wherever there's clover, wherever there's crabgrass, put some grass seed over it and put it right into compost. So cover it up, smother it out. You can even put leaves on your crabgrass in the fall and it'll kill it pretty quickly but it'll kill everything else. And then turn around and put grass seed down. I just can't say enough about adding grass seed because everyone thinks, "Oh I've got this crabgrass. I've got clover and I need to use chemicals to get rid of it." But chemicals never address the issue. You need to make it a survival of the fittest and give it grass seed and make sure that the grass seed wins. And that way you will have a gorgeous lawn without any weeds.