Remove deep rooted reed grass on overgrown allotment
I've just taken over an allotment in SE London and it's very overgrown with tall reed grass. Just spent a day digging down and roots go at least 2 foot down. Want to avoid using a pesticide. Current plan is to dig down a couple of feet, clear as many roots as possbile and use a mattock, but will still leave the deepest ones there.
All advice welcome!?..
Will the reeds just come back? I'm not sure how long I'll have the plot so more about getting a good crop this year and trying to help bring the plot back to use.