Q.killing wild onions
I read your article on how to kill these beasts and I am wondering how to best kill them right next to my house. They are coming up in the crack between the house and the sidewalk. I cut as much as I could off last fall and sealed the crack with concrete filler, but they broke through that and are back with force. They are EVERYWHERE!
GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on May 17, 2020
They are beasts! Just keep after it like the article says. I can't believe it broke through the concrete filler. I had some success with repeat applications of herbicide. Here are herbicide options:
https://hgic.clemson.edu/factsheet/wild-garlic-wild-onion-2/
https://www.gardeningknowhow.com/plant-problems/weeds/killing-wild-onions.htm
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