Decreases soil compaction – Just as you wouldn’t plant a rose in cement, a compacted soil bed is not favorable to a great lawn either! If you are over-seeding, loosened soil enables grass roots to dive deeper into the soil to find crucial water resources in times of strain. Soil compaction shifts pore space size, circulation, and soil toughness. One way to evaluate the change is by calculating the bulk thickness. As the pore space is reduced inside a soil, the bulk thickness is higher. Soils with a higher percent of clay and silt, which normally have more pore space, have a lower bulk thickness than sandier soils.
Reduces thatch – Most residence lawns are clear to thatch build up. Left unchanged, it cuts off water, fertilizer and pesticide helpfulness. Central aeration mixes soil with the thatch debris, so soil microorganisms are more efficient to break down the thatch and minimize its accumulation. Thatch is composed of grass stems and roots that build up faster than they break down. Unnecessary thatch generates an atmosphere that is ideal to pests and disorders.
Helps access to the root zone – By infiltrating the soil, you’re helping moisture, air, food (fertilizer) down to the root zone where nutrients are soaked up.
Improves seed germination – Grass seeds germinate quickly in aerated holes as the holes supply them a place to conceal. Grass seed need to be in immediate contact with topsoil to germinate and is not going to germinate in thatch.
Best Time to Aerate Lawn
Just like you wouldn’t mow a lawn that’s wet from rain or use a winterizer fertilizer in June, aeration also needs specific timing. The time of year you take on aeration and how often you aerate relies on grass and soil type. Spring and fall are always a good times to aerate. Different soil types need more regular aeration. Clay soil compacts easily and should be aerated no less than once a year. You can aerate a sandy lawn once a year, or you could deal with the job in alternating years. In dry climates, aerating two times a year will boost turf progress and health. If your lawn is regularly driven on or used for parking cars, aerate annually.