Chris from Colorado Springs, Co writes
I have a large rock area that I would like to spray to prevent new weeds from growing. I understand the product is used to kill existing weeds but want to know if I can used it to prevent new weed growth by spraying my rock areas.
The Fertilome Weed Free Zone is only a post emergent herbicide and will only kill existing weeds. It will not prevent any from growing. Surlan is our most popular pre-emergent product for rock landscapes.
Answer last updated on: 03/06/2014