Frozen grass can be extremely fragile. If you previously saw the effect that freezing even various metals can have, you already know where this is going. But to fully understand what happens when you walk on frozen grass, it’s very important to take a closer look at what happens with the grass blades, the soil and the roots of your grass.
As the frost sets in, you might notice it being present on top of the grass similar to a light sprinkle of snow. However, unlike snow, frost can be quite damaging for any plant that is exposed to it. Aside from the freezing of the grass blades, it also happens that the water trapped inside the grass blades expands as it freezes. Grass has evolved to withstand liquid water, but it’s too fragile to have any defense against sharp, freezing cold ice. As a result, when you walk on frozen grass, the pressure caused by your steps can cause irreparable cellular damage. Even with the roots intact, the damage can weaken the plant and lead to a lot of problems.
Keeping a healthy lawn with organic lawn care products should be one of your main priorities when it gets cold enough for the frost to set in. So make sure that you protect the grass from damage and even set up a small fence to prevent people from stepping on your lawn inadvertently.