You probably already know that trampling harms grass. However, you may not realize exactly how it damages your front lawns. You see, the part of grass that’s responsible for new growth is at the base of the plant, so even if the blades are harmed it isn’t a big deal. This allows us to mow grass without killing it.
Most of the long-term harm from trampling is due to compacted soil. For example, the compaction can reduce the amount of air and water available to a plant. When it rains on compacted soil, the water runs off instead of being absorbed, as it would be by more porous soil. Or else, even worse, it will puddle and drown the plant.
It’s even harder for plant roots to penetrate and work their way through compacted soil; this can affect seed germination and the plant’s ability to continue growing in that location. You may be wondering how grass on football and baseball fields stays so green, especially with all that heavy traffic. Grass on athletic fields is planted over a layer of sand, which greatly reduces the problem of compaction.