We have a huge quackgrass problem in our vegetable garden and are wondering how to deal with it. It is 650 square feet. Would it be best to just work the soil with a fork and pull out all the rhyzomes we can and then pull out individuals weeds as they come in throughout the growing season, finishing with a cover crop? What cover crop would be best to use in Zone 3b in Minnesota? We have loam soil with a high water table. It is very wet in the Spring until June, especially this year. Should we not do any work in the garden until soil dries up well into June? Also wondering what to do about rhyzomes coming in from lawn surrounding the garden... right now I just mowed on the shortest setting about 4 feet out from the garden and plan on keeping it mowed this way throughout the year. Is this effective enough? Or would it also be beneficial to created a living buffer like peas or wildflowers. Does anyone do this? If so what would be best to grow as a living buffer? I don't have much money to invest. I can't afford to haul in lots of mulch and I've heard that quackgrass rhyzomes just expands like crazy through mulch anyways. I'm totally against using chemicals like Roundup.
Sorry for the many questions, but I'm new at this.
Cass County Minnesota