In all three photos the largest plant (in front of your elephant ear) is an invasive, weedy tree called White Mulberry. You hopefully should be able to dig it out carefully with not too much disturbance to nearby plants.
In the foreground of your first photo, we see a plant tag (unreadable) right in the middle of crabgrass. Try to tease that out and see if you have your desired plant there anymore.
Lastly, in your third photo in the top left, we see another plant tag, but a suspicious looking vine growing there, which could be invasive porcelainberry.
See here: https://extension.umd.edu/hgic/topics/porcelainberry
If you didn't plant a vine there, remove that one.