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Yes, you can overseed your lawn without aerating it, but results may vary. If you have the time, dethatching or aerating your lawn before overseeding will yield the best results. Overseeding your lawn without aerating will work, but less seed will take root. For the best possible results, aerate your lawn before overseeding it.

Moss growing in a lawn is a sign of poor soil that makes it hard for grass and plants to grow. Moss thrives in these conditions and spreads easily, so it can quickly take over your yard if it’s lacking in nutrients, too wet, or has an excessive amount of shade. Moss in the lawn isn’t always a bad thing, but it can prevent turfgrass from forming deep roots.

Lawn aeration and dethatching are meant to solve the same problem, loosening up compacted soil so that the root systems can grow and receive more water, oxygen, and nutrients. Aeration is the gentler option and often the preferable one. Dethatching completely tears out the thatch layer of the lawn and can inadvertently yank out healthy grass if done incorrectly. Aeration loosens the soil and only removes small cores of it.

Choosing fertilizers: slow-release for steady nutrients, organic for eco-friendliness, or specific blends for soil deficiencies or grass types.