Eradicating Horsetail Grass
Hi all! Newbie gardener here! I wonder if anyone can help me?
Unfortunately, my garden has had horsetail grass growing in it for the past three years.
Initially I tried spraying it with weed killer, which didn't do anything! I then resorted to cutting it back to ground level, and spraying it, which killed the stalks I'd cut, but they were soon replaced by new growth.
Last spring I covered my garden completely with two layers of weed proof matting, and four inches of gravel, but the horsetail grass managed to grow up through the matting just in time for summer, so I was back to cutting and spraying again.
It's very frustrating as the horsetail grass engulfs any and all other plants! Short of concreting over my whole garden, does anyone have any idea of how to rid my garden of this incredibly invasive and annoying plant?