Kristin from West River, Md writes
I have planted a row of Arborvitae and want to know if I should put Tenacity before or after I mulch?
If you are planning to add any type of groundcover like mulch or pine straw, it is always best to put down your pre-emergent and water it in before applying the groundcover. In this situation, however, we would not recommend using Tenacity Herbicide next to or under desirable trees or ornamental plants. Per the product label, " Avoid over-spray or drift of spray applications onto ornamentals or flower beds and gardens. Roses and daylilies are sensitive plant species. Avoid applications over the top of exposed roots of trees and ornamentals." Our most popular pre-emergent herbicide for use around established ornamental plants is Snapshot.
Answer last updated on: 03/30/2018
