Although this is not a plant I've encountered personally, pokeweed - Phytolacca americana, came to mind immediately. It is for sure not a poppy or a snapdragon and the leaf shape and veining don't look right for celosia........

The larger plant appears to be a snapdragon in your second and third pictures.

Interesting that Ken should say pokeweed - that's the first thing that came to my mind, too, so it probably is a pokeweed. The other plant looks to be either a cudweed or a rabbit's tobacco, closely related plants. I'd keep it, since this is a host plant for American ladies. The other, of course, is a snapdragon.

Sherry

The little one is a lychnis? Coronaria? Rose campion?

A closer picture would enable a better id of the smaller silvery plant. Lychnis coronaria crossed my mind but the leaf shape doesn't seem quite right. I'd like a better photo to be sure.