I sprayed my garden about a month ago, March 1.
Princep Liquid Herbicide is a pre-emergent that is safe to use on established turfgrass and ornamentals on the product label. If there were to be damage to existing plants, then you probably would have already noticed it by now. We always recommend reading the product label completely before applying herbicides to be sure it is safe and appropriate for your desired application. You should not use Princep Herbicide where you have planted or where you are planning to plant edible vegetation. If you are planning to re-seed or overseed an area where you have sprayed Princep Herbicide, then you generally must wait at least 6 months after application before seeding.
Answer last updated on: 04/07/2016