Anyone ever try this? Supposedly, you throw a few inches of mulch on top and it works great. Breaks down in a year or so and it provides nutrition to the soil. Take the tape off the boxes. Just regular brown cardboard I guess. In theory at least, it should work. Not sure about the nutritional value for the soil, but who knows. We'll see.
It sounds like it should work. https://gardenandgun.com/articles/why-my-new-favorite-weapon-against-weeds-is-a-cardboard-box/
Just keep in mind if this will also be around or near plants that need water, the cardboard holds the water out fairly well until it starts breaking down.
Works great, I did it around all of my fruit trees & shrubs when I planted them. The cardboard itself isn't going to provide nutrition. It suppresses weeds, helps retain moisture, and worms like to eat it. The worms and their castings will help improve soil but you still need to feed the soil. If you're in the south soak the cardboard well before doing it so it doesn't pull moisture. If you're in the northeast you can put it down dry then thoroughly water after. You can use most cardboard, just don't use anything shiny/coated.
It does. But as cutting cardboard into little tailored pieces goes when you get down to the areas other than "wide open spaces" in a bed, yes, you have to give the plants you want to grow a comfortable buffer from the cardboard zone. I mean, that part is common sense. Obviously they'll need water. But we'll see. So far so good though. Not one weed in the test bed yet and the flora is thriving.