To begin, the soil you planted in may not be ideal, or perhaps it has become depleted of nutrients after a time. If you have clay soil, a mulch will help to lighten it up and assist with drainage. If your soil is too sandy, mulch will actually help to conserve water. Mulch helps to aerate the soil, and prevent compaction. Earthworms are attracted to the beds that are rich with mulch containing organic matter.
There’s nothing like a thick layer of mulch to combat weeds in the garden. A mulched¬† bed doesn’t require too much maintenance.¬† Mostly because any existing weed seeds will be buried too deep to germinate. The few weeds that do grow can be easily pulled, since mulched soil never gets hard and compacted.
Mulch can help to conserve up to 50% of the water in your rose beds, and can reduce the temperature of the soil from 10 to 20 degrees. This becomes very beneficial, if not crucial, during the hot summer months.
Disease and Insect Control
Mulch controls some insects and fungal diseases in your¬† beds. Mulch can reduce the splashing of fungal spores off hard ground up onto the plants, and reduce the harmful effects of soil fungi and nematodes.