re: Help with getting rid of elephant ear plants

Does your neighbor want to keep them?

I’d see if he doesn’t mind removing them since they have obviously spread to the point of being a nuisance for you.

Digging them up roots and all several times over is the best practice. You could treat with herbicide but if you want to replant this area immediately, it’s not recommended

Bamboo, elephant ears, and shell ginger are three things I rarely plant or design with unless in a completely contained environment