I just put 50 gal. on my place by my cabin. I put it in an area where the Canary grass grows really tall and thick. I think the acid in the soil helps this stuff grow. Question is does anyone know what makes this grass grow so tall and thick. It's very acidy soil in Price co. Wis. I'm wondering how to rid of it. I even tried roundup but came back up full throttle the next year. What can I do to rid this stuff. P.S. The deer don't even touch it.