Unlike the majority, I hate grape hyacinths with a passion. The problem is my garden is “infested” with them. Apart from digging them up, which would take forever, how can I kill them off?
Certified GKH Gardening Expert
I am afraid that they can only be eradicated by digging up the plants or using a broad spectrum herbicide, which would kill everything in the area. You can minimize their spread (so you don't feel you are fighting a losing battle) by removing the foliage and any seed pods. This will keep seeds from being spread and weaken the bulbs so they can't produce bulblets.