Question:Do you have a lawn product to suppress weeds? Thanks, John. Answer: John, get the lawn as healthy as possible w/ the proper soil composition; this does a great job of weed suppression. I recommend our OPTIMIZE, MAXIMIZE and Biosol NOURISH. There has been very interesting research indicating the proper relationship between calcium and magnesium (6 to 1) is the key to naturally suppressing weeds in turf. Our products are formulated to achieve that 6 to 1 ratio. Thank you, John