Cardboard is biodegradable and safe to compost, but it can only be recycled a limited number of times before it becomes too degraded to be remade into new paper products. However, cardboard has ...

Cardboard usually leaves the house folded and flattened, bound for a recycling bin. In winter gardens, it has taken on a quieter role as a surface cover laid directly onto soil once crops are cleared.

Q: I am planning to change about 550 square feet of my yard from grass to an area of rock path with shrubs, flowers and bark. I have been instructed to put down a layer of cardboard and then put about ...