I don't know what quack grass is, so with that in mind .... In one bed that is up against a fence and on the other side wilderness with invasive virginia creeper, I buried plastic flashing. I used a fiskar's edger shovel, worked great. But then I'm digging in sand. A year later, and past the "OMG it is taking over the yard time", the flashing is doing the job. In the front, I contend mostly with St Augustine that spreads along the top of the ground. What I have been doing is a multi-step kind of time consuming thing; but hey - beats fighting weeds. First, I mound up dirt where my border will be. I use either rocks or logs for borders. Then I try to settle the dirt. Second, I layer newspaper over my mound. Third, I lay plastic over the newspaper. Fourth, I put my border material on top the plastic. And lastly, I come back around the front side of the border with a 6" or so strip of newspaper then plastic then cardboard topped with mulch up to the border. You can see in the photo above a garden that is partially complete. On the right is finished on the left I'm still working on the 6" strip. For grass/weeds that spread by underground runners you can dig out a 6" wide and 6" deep moat before you layer on the mulch. Hope this gives you some ideas and help, ~dianne

Thank you! They are very easy to pull, but I just wondered if I was wasting my time because they are so prevalent throughout my yard. Do you know if mowing them stops them from flowering/seeding? The mowers came so now they are very hidden/short.

Not sure about an i.d. . Appears to be some kind of perennial weed with a spreading,aggressive root system, which is the reason it keeps returning. You will have to dig the entire root system out completely, not leaving any small pieces remaining in the ground. Hacking all of this weed to the ground, and destroying any new growth will also kill them over time, but it's also a good idea to do that to all the plants that you can't dig out at the moment. Allowing them to grow to that size allows the roots to grow larger, and increases the likelihood of some of your weeds setting seed. Sit tight, an i.d. will arrive soon. My friends on the Name that Plant Forum usually daily make the rounds over here, when we run out of plants to identify over there, and all you weed people who ever need an i.d., and want it quickly, are very welcome to post your threads over there.

Round Up is next if fenoxaprop doesn’t work. I haven’t been around the forum in quite some time I but I thought I remembered a post saying you were done here...maybe I’m remembering incorrectly. Either way I’m excited to have your assistance getting my soil in shape. I have a feeling the report is going to be ugly. I will try to send the sample(s) off within the next week. I may do front and back yard separately to compare. I have different problems in each.