This should be done two times per year in the spring and fall when the soil temperatures
are low and not under any heat or hot weather stress. During the aeration
process, plugs will be taken out and those plugs will decompose within a week or
two and the lawn will be looking new again. Aeration improves the overall soil structure
and helps to improve growth pockets for new roots. It also opens the way for
water and fertilizer to enter your lawn’s roots.