What to spray in a perennial rock garden

Asked November 2, 2018, 6:05 PM EDT

I have a perennial rock garden and notice this past summer a weed growing. I pull it out and it seems to multiple. What can I spray in this garden to kill the weeds but not the perennials. I am getting my garden winterized.

Dubuque County Iowa

1 Response

Thank you for your question. Before recommending an herbicide, the identity of the plant must first be determined. Although I believe I can ID this plant, I would feel more confident were you to seek advice from your county Extension service, where staff can recommend control strategies. Please contact them. Here is their webpage: https://www.extension.iastate.edu/dubuque/ Good luck!