I'm planning to start an in-ground garden and have tilled in some compost and topsoil, but I'm worried about weeds since I used a plastic weed barrier last year and hated it. I've heard that cardboard can be used as a weed barrier—can I stake it down and cut holes for planting? I've also covered the area with leaves, but I'm not sure if that will keep the weeds at bay. I'd love to hear your thoughts on using cardboard as a permanent solution!
3 Answers
I really like using cardboard! It beats commercial barriers hands down. Just remember to soak the cardboard well before putting down the mulch, it makes planting a lot easier later on.
Using cardboard is a solid idea! Just make sure to stake it down with wire to keep it secure until you can add mulch. It will take a bit for it to decompose—thinner cardboard breaks down faster, while thicker boxes might last a year or two. But keep an eye out for delamination; the layers can start falling apart if they're wet too long.
While cardboard works well, some weeds may still poke through, but usually in very controllable amounts. If they do come up, it's best to yank them out by the roots. You can also use a vinegar and salt mix if you're looking for a chemical-free option. Watch out for strong-rooted native plants, though, as they can compete with your garden!