How to rid Nut Grass from my Raised Garden bed. It was introduced to the garden bed by horse manure in 2021 and now its flourishing. I don't want to grow anything in the garden bed, just want to get rid of the nut grass and put something over the top so it doesn't grow back. I am renting and due to pain and reduced mobility in my back and hips i am not able to maintain anything growing in the garden bed. Sorry i don't have pictures. But the nut grass was very thick and 2 feet tall, i have it dug out and then it grows back in 8- 12 weeks.
I have just had it dugs out again a week ago and already new shoots are a few inches tall.
Sandhya1