I think that I figured it out. Here is Unknown Plant #1:

Hope this works. Thanks again for your help,

Martin

Malva sylvestris, possibly 'Zebrina'

Here is a link that might be useful: malva

Thanks for that name for unknown plant #1! (Malva sylvestris) Do you consider it a weed?

Here is another one, unknown plant #2. It is the large plant with the white flowers. This view isn't so good, so I'll post two pictures:

Here is a closer image (a better one) of unknown plant #2, if I did it right:

Hopefully, you can click on the thumbnails to get larger images.

Thanks again for the help. This unknown plant #2 was one I bought at an amateur plant sale for $1. It was maybe 6 inches tall when I bought it this spring, but now it is 6 feet tall in July. I planted it right in front of one of my wife's rose bushes. Whoops. The bumble bees just love this plant. There is a pocket in the back of the flowers where they crawl in and out.

Martin

Impatiens glandulifera?

considered invasive and/or noxious weed in some states.

DO NOT LET THIS GO TO SEED--Or you will have more than you and your neighbors will ever need.

Here is a link that might be useful: usda profile

Thank you, plantknitter! I'm going out to pull it up right now!

Martin