How do you kill forsythia?

Answer 1

To effectively kill forsythia, you can use a combination of physical removal and herbicides. Start by cutting the plant back to the ground and digging out the roots, as forsythia can regrow from root fragments. If needed, apply a systemic herbicide containing glyphosate to the cut stumps or foliage, ensuring you follow the label instructions for safe application. Regular monitoring and repeated treatments may be necessary to prevent regrowth.