Crowd out crab/quack grass Home › Forums › Flower-Garden Questions › Annuals and Perennials › Crowd out crab/quack grass This topic contains 0 replies, has 1 voice, and was last updated by Anonymous 7 years, 8 months ago. Viewing 1 post (of 1 total) Author Posts March 17, 2009 at 2:24 pm #28702 Anonymous I had some site work done on my place. Unfortunately the fill used was loaded with some kind of crab grass or something. It got like 6 or 7′ high and was very thickly stemmed, growing like crabgrass. Anyway, I messed up and should have not let it get high, etc. I don’t have a lot of money to rip out the soil and do it over, so I wanted to try and crowd it out somehow. Any ideas on what would be an early growing, aggressive native grass or even a perennial (NY Hudson Valley) that could attempt to start crowding this out in Zone 5? Thanks so much! Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.