This has been blooming for months and is about 22in tall. That is the tallest branch. It`s bushy and has shiny leaves.
arsenic, It isn`t exactly like that. My leaves have a less jagged edge, more strait and the flowers don`t have that fullness in the center.It could be a cousin.
Hibiscus, it isn`t a hibiscus, this plant is small and so are the flowers. I will try to post a better photo.
it looks like the yellow morning primroses my grandmother used to have. Sure wish I had some to put into my slowly developing garden... if it IS the morning primrose you should watch it to make sure it doesn't take over your garden... it can be invasive.
Sorry, it has nice leaves, shiny like hibiscus. I have one that color only bloom is 4"-5". I'm sure no help!