PINE BARK MULCH 0-10 mm,10-30 mm, 30-60 mm It is a wonderful material for arranging, caring and maintaining gardens. Bark mulch significantly improves and keeps air permeability to the soil by regulating moisture and temperature into the soil. By slowly decaying and mineralizing, it enriches the soil with nutrients. Mulch maintains its ornamental look for 2-3 years. It is advisable to renew ornamental covering periodically, by applying 5-8 cm fresh pine bark mulch layer.