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What Type of Shrubs for Road Noise?
What Type of Shrubs for Road Noise?. Homes and businesses located near busy roads use shrubs to reduce traffic noise. The deeper the barrier, the greater the noise reduction. A 20-foot wide shrub buffer reduces decibel levels.
Homes and businesses located near busy roads use shrubs to reduce traffic noise. The deeper the barrier, the greater the noise reduction. A 20-foot wide shrub buffer reduces decibel levels.
Types
Evergreen shrubs provide year-round noise reduction. Cypress of the Arborvitae family has dense, dark-green foliage and can be planted close together to form a solid mass. American hollies are available in a variety of sizes and forms and can be mixed in a border.
Durability
Plant a sound-reduction shrub buffer as close to the source of the noise as possible. If you are using shrubs to reduce road noise, choose plants that tolerate road salts. Bayberry, a tough shrub, produces winter berries for the birds while standing up to poor soil and salt.
Tips
The United States Department of Agriculture recommends planting a mix of shrubs of varying heights. Trees and shrubs with ground level or weeping branches combined with low-growing evergreen shrubs will provide the maximum noise reduction.
