Question: I live in San Diego, but want to know if your soil optimizer will work well at my son's home in Westfield Ma. ? It is sandy loam, not far from the Westfield River. Russell Answer: Russell, Our product formulas are universal and will work equally great in all soils and climates. The goal of all our products is to maximize the health and structure of soil by infusing your soil with complex beneficial microbial life. All our products contain either microbes, food for microbes or attractants for microbes and those little guys (beneficial soil microbes) are nature's mechanism for great soil and pest & disease resistance, no matter what part of the world you garden in. John.