using pieces of cardboard to mulch around plant beds

Question

Is it okay if I use pieces of cardboard from old boxes to mulch around plant beds? Just wondering if this would restrict oxygen and water from the soil.

Answer 1

Cardboard is being used more and more often as an ingredient in bio-efficient composting mulch. This article provides more information: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/sheet-mulching-in-gardens.htm