1sst,
Just leave them alone.
In the spring, just cut off the dead parts.
It'll be back with a vengeance, it gets bigger every year.
You should see my neighbors, I think its a confederate rose tree! LOL.
I love hibiscus.

This plant is very easy to root. I cut about 12 inch piece
off and put in a bucket of water. It will root. I use to put several in a bucket and give them away. I had to cut my last one down as it had got to be too large and was in the way. Now I have to go and ask for a cutting.

Thanks,

Most of the info I see is for winter care in zones warmer than mine.

In my zone, I was worried it would not return . I was not sure if I needed to root stems to replace the one I have.