First – the soil test. Most turf grass prefers a soil pH between 6.0 and 7.0 in order to take up the nutrients it needs. If it’s too acidic you can apply lime, but before you do, you’ll need to get a soil test done. It’s easy – send in or hand deliver your sample to the CT Agricultural Experiment Station and they will analyze and send back easy-to-read test results at little to no charge. (UCONN also does soil testing)
Second – once you have your results and lime definitely is needed, fall is a great time to apply it. Why? The lime works it’s way into the soil raising the pH with the help from rain, snow and the freeze/thaw cycle. It can also be applied once the snow has melted. Pelletized lime is the way to go as it’s easy to spread with less dust and the light brown color is practically unnoticeable.