When using cardboard as mulch in a typical garden setting, the biodegradation process occurs relatively quickly. This means that the cardboard will break down and decompose, adding valuable organic matter to the soil. In my experience as a gardening and landscaping expert, I have found that the majority of cardboard is completely broken down within a period of three months.
Cardboard, being a natural and biodegradable material, readily decomposes when exposed to the elements. However, the rate at which it decomposes can be influenced by various factors such as temperature, moisture, and the thickness of the cardboard. In the context of using cardboard as mulch, it is important to ensure that it is shredded or cut into smaller pieces to facilitate quicker decomposition.
When cardboard is used as mulch, it performs multiple functions. Firstly, it acts as a barrier, suppressing weed growth by blocking sunlight from reaching the soil surface. Secondly, it helps retain moisture in the soil by reducing evaporation. Lastly, as the cardboard breaks down, it releases nutrients into the soil, enriching it and promoting healthy plant growth.
To expedite the decomposition process, it is beneficial to soak the cardboard in water before using it as mulch. This helps to soften the fibers and allows for easier breakdown. In my own garden, I have often soaked cardboard in a bucket of water overnight before placing it as mulch around my plants. This has resulted in faster decomposition and improved soil health.
It is important to note that the rate of decomposition may vary depending on the specific conditions in your garden. Factors such as the type of soil, temperature, and moisture levels can all influence the speed at which cardboard breaks down. In warmer and more humid climates, decomposition may occur more rapidly compared to colder or drier regions.
When using cardboard as mulch or specifically shredding and soaking it to decompose efficiently, the process of biodegradation occurs relatively quickly. In most cases, the majority of cardboard will be completely broken down within three months. By incorporating cardboard into your gardening practices, you not only benefit from weed suppression and moisture retention but also contribute to the enrichment of your soil with valuable organic matter.
