Sahara DG Herbicide is a bare ground herbicide which provides you with both pre and post emergent control of any and all vegetation for at least a full season/year. Results will vary with area, soil types, application and environment. Some customers receive control for 1 year while others much longer. Anything planted in an area where Sahara was used will die as long as the product is still in the soil. We would recommend speaking with the manufacturer for better information on what can be done in the area that was treated. You can reach BASF at 1-800-777-8570.
All bare ground/vegetation management products like Sahara DG, are recommended to be applied outside the dripline of desirable trees and plants to prevent their feeding roots from absorbing the product. Inside the dripline is where these roots are closest to the soil and could absorb any such product so we would not recommend using any in the area you have described. The best thing we could recommend is using a glyphosate based product like GlyPhosel Pro to spot treat the weeds you want to kill around the tree and then use a pre-emergent such as Surflan Pro or other that is listed for the weeds you need to control.
