cody mi: Not that I have any answers for you but I share the same predicament. Am I understanding that your Hibiscus is a perennial type? I recently selfed a tropical type and have since planted the seeds( inside and some also on a grow mat) and as of yet (approx. 2 months) no sprouting! I am beginning to think that maybe the seeds were sterile? I really don't know. I will continue watching this thread for further answers to your problem. Hope someone is able to help you(us). Ross.

these are hardy hibiscus

moving them in the house did the trick, within a week seedlings started popping up.

Where there is a will...there is a way. I guess your persistence paid off. Now sit back and enjoy their growth until you can get them back outside. Ross.