I am hoping to use cardboard as a mulch or weed suppresant in the now unused vegetable plot.
In the greenhouse I have grown borrage to replace the borrage which was ub tge veggie plot and has disappeared after years. There is also sick looking rasps, an apple tree (not sick) echiums, which are massive, but not flowering, self sown aquilegias, a strawberry patch, which is grassed, and no fruit visible.
So I thought that cardboard might be a partial answer!
Has anyone else used it?