Aerate Your Grass Lawn If you have dethatched your grass and fixed any possible drainage problems, but you still have a spongy and squishy grass lawn, you should consider aerating your lawn. The most significant advantage of lawn aeration is that it increases soil drainage.
Why is my soil spongy?
If it feels spongy, it has a lot of organic matter in it and means you have peat soil. If it feels like sand, then the soil is sandy. And it if feels hard, it will be clay soil. … If it makes and holds the shape, there is clay in the soil; if it does not hold shape, there is more sand.
