Hi Merianna,
If the pod area falls off immediately, the flowers are not getting pollinated. Sometimes this happens with the early blooms,(sometimes plants do this during really hot weather but I can't imagine hibiscus being one of them,) and then the rest form seeds. If you have a lot of flowers though and none seem to be developing seed, you can hand pollinate. A small paint brush works great, just go around quickly brushing all flower centers(staminal columns) and you'll get seed development.
Remy

Here is a link that might be useful: hibiscus anatomy pics

Thank you, Remy. I will try that. I don't think its a water issue even though Texas is crazy hot right now. I have a sprinkler system.