Mulch is made out of bark that is cut into little pieces.When it's cut into little pieces, we call it mulch. Mulch helps plants to grow healthier.
Mulch keeps soil moist so the water can be used by the plants instead of evaporating.
Mulch also keeps weeds away. When you put mulch on top of weeds, the weeds die and the plants are protected.
It keeps plants clean too! It gives a lot of nutrients to plants and they are more healthy.