I had backed off because I think sometime too much info can be bad too.
I can only tell you how I grew mine. I did not grow it as a houseplant to look good. My goal was winter storage to go outside on the patio in the summer for the fragrant flowers.
Because the plant would be hardy in your area in the ground I would think it would be normal for it to slow down and sleep for the winter. It is hardy zone 8 - 10. That hardiness zone it would be expected to go to sleep and rest for the winter. I am a zone 6 so I had to bring it inside for the winter.
If they are saying it is hardy to zone 8 that zone would get some low temps below 50.
That said....... since I was growing it for summer beauty. I brought it in when my temps were going to frost. That is 32. So it came inside and was put in a cool room 50-60. It lost most of the leaves and I gave it enough water so the soil was not bone dry. Which was usually every 4-6 weeks. When I put it outside for the summer, it started to grow fresh leaves and it bloomed Spring and Summer.
If I was in your zone I would leave the plant outside and only bring it inside if I was going to get frost. 32 or below.
I am not sure but I think you want a houseplant that is fragrant. If you want a plant that is pretty indoor and outdoor 12 months a year you may have to look for something that is tropical that blooms fragrant flowers.
