Lawrence from Thousand Oaks, Ca writes
You could use a product like Fertilome Over The Top II to control any grassy weeds currently coming up in the Herniaria Glabra ground cover that you have. Unfortunately, there are not any post emergent products that can be broadcast over ground covers or ornamentals for broadleaf weeds that will not also harm the plants you spray them over. You would need to hand pull any broadleaf weeds or carefully spot spray them with a Roundup-type product. To prevent having to treat with a post emergent throughout the year, you can treat with a pre-emergent herbicide earlier in the spring in the future to prevent both grassy and broad leaf weeds from coming up in your Herniaria Glabra. One of our best products for that would be Snapshot.
Answer last updated on: 05/31/2019