Do you recommend adding rock dust to organic home gardens?
Question:
Do you recommend adding rock dust to organic home gardens? Over the years I have occasionally added Greensand. How does Greensand differ from Azomite? Do you recommend either or both? This question pertains to my garden in Jackson, NH, and my son’s in Freeport, ME.
Answer:
I recommend that you and your son submit a soil sample for testing. In New Hampshire, you may submit a sample via the UNH Extension Soil Testing Service; forms are found online here. In Maine, your son can submit a sample via the Maine Soil Testing Service; he can request a soil test kit here. Greensand and Azomite are good sources of potassium, but we only recommend soil amendments based on soil test results. It’s difficult for us to provide a recommendation without knowing the current nutrient analysis of your soil.