How do I get rid of Bishop's weed ? I have tried plastic, mulch and pulling it out, but it comes back bigger than ever. Thanks for any help. It is ruining my perennial bed. |
Bishop's weed can be difficult to control. Try hitting it with Round Up (which will be transported down to the roots) and pulling it out after it dies. It will resprout and when it does, hit it with Round Up again. Eventually the roots will die out. Round Up will kill adjacent plants so either paint the product on the Bishop's Weed or set cardboard boxes over your perennials so the spray won't hit them. Since Round Up does not move in the soil your perennials will be safe but the Bishop's weed should die out. Remove the cardboard boxes as soon as the spray has settled. Hope it's soon! |