The answer to 'aeration vs' is that aeration and overseeding are two distinct lawn care practices that serve different purposes. Aeration involves punching small holes in the soil to improve air, water, and nutrient penetration, while overseeding involves spreading grass seed over an existing lawn to fill in bare patches and thicken the turf.
Aeration is generally recommended once or twice per year, typically in the spring or fall, to alleviate soil compaction and promote healthy root growth. Overseeding is often done in conjunction with aeration, as the holes created by aeration provide an ideal environment for new grass seed to take hold. Overseeding is particularly beneficial for lawns that have become thin or patchy over time.