Linda from Portland, Or writes
The grape hyacinths have multiplied and spread to places I don't want them. Digging them out hasn't been successful because it's impossible to get them all. I'd like to know how to get them gone.
Helena Crossbow Herbicide does not specifically list grape hyacinths. We recommend that you consult with your local cooperative extension office Master Gardener for tips on eradication.
Answer last updated on: 10/08/2019