Unfamiliar flowering plant?

Looks like Musk Mallow. One of the Hollyhocks family.

https://www.google.com/search?hl=en&tbs=simg:CAESiQIJ6uo5w8AY1Fga_1QELELCMpwgaOgo4CAQSFOgY8RLLD_1Y9nB-xJccRyhDOApgeGho4VYBPIFvDO6nUt2L4fkUMyBvQJuJsdizwPCAFMAQMCxCOrv4IGgoKCAgBEgQ8y8f3DAsQne3BCRqdAQodCgpob2xseWhvY2tz2qWI9gMLCgkvbS8wMnpobjcKGQoGbWFsbG932qWI9gMLCgkvbS8wNWNxN2gKJAoRZXZlbmluZyBwcmltcm9zZXPapYj2AwsKCS9tLzAzemczbgocCglnZXJhbml1bXPapYj2AwsKCS9tLzAxeTFfegodCgt3YWxsZmxvd2Vyc9qliPYDCgoIL20vMGc5a3kM&q=hollyhocks&tbm=isch&sa=X&ved=2ahUKEwj2u7zCnsT4AhWIg4kEHU82ArMQjJkEegQICRAC&biw=1536&bih=723&dpr=1.25

Whatever plants they are they are very beautiful and look really healthy!

Hollyhock family.

Rose of Sharon are part of the Hibiscus family. A perennial bush flowers every year in late summer or fall. Hollyhocks are a biennial. They grow/bloom every two years in the spring. Some species do grow every year. It's possible they were planted there previously or seeded by blowing wind.

Musk Mallow!

Hi Janet, it's a Mallow and they propagate easily by seed. In fact, most will self-sow prolifically. Both the hollyhocks and mallows belong to the same family of Malvaceae, and so they do share many common characteristics, but the mallow is perennial while the hollyhock is biennial and short-lived.

Those are beautiful. Mallow sounds familiar but the picture didn't. What zone do these thrive in? I love these.

It's Musk Mallow.

It is listed as invasive in many areas across the Asia-Pacific region, where it is threatening the growth and survival of native flora and fauna.

The risk of A. moschatus being introduced into new regions is very high. Worldwide, this species has been intentionally introduced as an ornamental plant, a medicinal herb and for the extraction of ambrette oil from its seeds. It has repeatedly escaped from cultivation and has the potential to become naturalized in many different habitats.

My dad says in the hollyhock family.

Hollyhock, Althaea

MALLOW

looks like wild raspberry - but use the app plant snap to ID it.

They look like my Rose of Sharon flowers. I read that most people think they're Musk Mallows, I've never seen them before, but they're very pretty.

I suppose this is a Musk Mallow.

If you have an iPhone, take a photo and look at the picture. At the bottom there is a little i in a circle. Click that and under the photo it will say "look up" and click that. If not, I find the free app iNaturalist to be very helpful.