look at Alan Titchmarsh on gardens world web site,he say leave it alone and when a bud breaks cut the old top growth off above the new shoot.
I love Hibiscus, this was a seedling taken from my daughters garden 6 years ago.
Wishing you a very Happy New Year and a new home.
Happy Christmas to all Gardener's World bloggers.
Last week in the local there were dozens on the wing lunch time when I took the dogs for a walk,the sun was shining then but none this week so they must have found there resting places.