Mulching is an effective practice for maintaining soil health and promoting robust growth in your Cornelian cherry. Apply a 5-8 centimeter (2-3 inch) layer of organic mulch, such as wood chips, straw, or shredded leaves, around the base of the plant. This helps to retain soil moisture, regulate temperature, and reduce weed competition. Additionally, as the mulch breaks down, it adds valuable nutrients to the soil, enhancing its overall fertility.