My small suburban garden (40ft x 40ft) had flower beds dug at each side and across the back, but I did not get around to planting them last year. They are now a mass of weeds (some close on 6ft high with thick bases). Other than dig them out (massive task) - is there anything else I can do. I am not sure about Roundup and the likes, because I will want to plant the flower beds later. I cut some with the strimmer, but the roots are still there and are thicker than the base of some small trees.
Also, is there anything I should do to stop the weeds reoccurring. They are absolutely huge.
Help!