3135 Orange Road Niles, Michigan 49120 Phone: 269-683-0598 Contact Us_Directions


Save with the Gro-Fine line of products mail

This full line of quality fertilizers and lawn products saves you money and saves time. Our specialty fertilizers take the guess work out of finding the best solution for your yard and garden needs.

Knox Fertilizer has been in the specialty end of the plant food business since its inception over 50 years ago and Mark Farm Supply is proud to make these products available to you.

Note that we can customize a fertilizer plan for your lawn's specific needs.