- September 22, 2015
- Posted by: GK's Custom Polishing, Inc.
- Category: Concrete, Hard Surface Maintenance
If you are someone who gardens frequently, you may have noticed rust-colored stains on your concrete surfaces. These stains are most likely caused by the fertilizer that you are using on your plants or grass. Most fertilizers and plant foods contain minerals such as iron, copper, zinc and magnesium. These minerals are used to help