I saw this pink rose mallow at a local fruits and vegetables market. Outside in front of the store, they also sell seasonal plants and flowers. Rose mallow is also known as Peppermint Schnapps, and they look similar to rose of Sharon and hibiscus.
The only different that I can tell is the petals of this pink rose mallow! They are much rounder in shape, and bigger in size than the other two. In any case, they are all in the same family.
Rose mallow is a perennial plant, and it needs full sun. This plant can also re-seeded itself, and it you don't want them to take over your yard, earlier removal is a must throughout the year.