Fertilization, Aeration, Weed Control, Overseeding. Core Aeration: Increased water, nutrient and oxygen uptake. Nitrogen, Phosphorus, Potassium, Blended Fertilizer. 30 Day Guarantee. NutriGreen specializes in making lawns thicker, healthier, and greener through core aeration, fertilization, and weed control applications. We are a family owned business located in Roswell since 1997. Our specialty is solving lawn problems and issues that home owners and bigger lawn care companies can't seem to solve. We service Roswell, Alpharetta, Marietta, Woodstock, Johns Creek, Dunwoody, Cumming, and more in the GA 400 corridor.