Hibiscus in zone 6
I added onto Arctictropicals post above but I should have added my own post. My hibiscus is zone 8 hardy and I am in zone 6. Arctictropical mulches heavily and has gotten good results in zone 4. I really just want to know, in zone 6, do I need to wrap the branches besides mulching the roots? Should I protect the top or just worry about the root system?