What purpose does creating a 2 to 3-foot wide border of gravel or rock mulch serve around a yard's perimeter?

Answer

It serves as an abrasive, unappealing transition zone between wilder areas and the lawn.

This clear border of gravel or rock mulch creates an abrasive surface that snakes find unappealing as they transition from wilder areas into maintained lawn space.

What purpose does creating a 2 to 3-foot wide border of gravel or rock mulch serve around a yard's perimeter?
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