Which herbicide to use?
I have a fairly large area (approximately 60ft x 10ft) that I am getting ready to plant with ornamental grasses and would like to know what is the best way to prepare the soil so that the plants and weeds that were here previously do not return.
I have already cleared all the plants that were the best that i could, although i am sure some roots/seeds still exist. This was a chore because it is on a slope and the area had not been tended to for many years by the previous home owner. Consequently, there was quite a mix of plants, but mostly daisies, some sedum, some ferns, and lots of weeds.
Now that I have the tilled dirt, I want to know if there is something i can use to prevent any of the old plants/weeds from coming back and invading my new planting? I have read about pre emergents but these only seem to apply to weeds... would it also work for the daises, ferns, sedum, etc. that might still have roots/seeds in the soil?
If a pre emergent herbicide is the correct application, which one should I use? (brand, active ingredient, etc.?) Also, given the size of the area what is the best application method (spray or pellets)?
Thank you in advance for your time and consideration of my situation.