I know this question is going to have been visited before but here it goes. How early is too early to aerate in the spring? Is it just a matter of the cores sitting on the turf and more visible than on a green lawn? Right now we have dormant turf, ground is not frozen, and the idea/plan is to get the aerations done asap. In years past we have waited but we have too much to get done before the grass needs cutting.