Have been trying to remove hardy glads from flower bed for several years. Two years ago I tried to catch the 'babies' by putting soil through a screen. To no avail, they continue to come up each spring. Any suggestions would be appreciated. (live in Zone 5, glads are planted along southside of home, don't lift in winter).
Certified GKH Gardening Expert
Are you sure they are glads? It is unusual for them to survive winters in your zone. Also, these plants are not generally prone to being so aggressive as far as their growing and cormas can normally be easily removed. You may need to dig up the bed in its entirety to fully remove this plant or spot treat any pop-ups with Roundup.