It is most likely to be a Rose of Sharon which is, as other say, in
the Malvacea family:
Look at this link to see the exact plant it may be by looking at the
flower. All plants, sans ferns, palms, and cycads are identified by
their flower parts.
If the link doesn't work, do a google search on rose of sharon and in
the upper left corner click on images and it will bring them all up.