Our hibiscus database is not divided into three separate databases. Therefore, we have only one parent plant. If you can see any information in the parent plant entry that doesn't apply to all hibiscuses, please let me know and I'll remove it from the parent plant.
It's also easy to add other information to all of the Hibiscus moscheutos, Hibiscus syriacus, or Hibiscus rosa-sinensis plants if you use the mass databox proposal form:
http://garden.org/plants/propo...