I live in zone 5 and keep hibiscus outside in winter with mulch. Am I supposed to cut them down in fall?
Certified GKH Gardening Expert
No. It is better to wait for spring to do any cutting on this plant. Cutting now will likely lead to cold damage this winter. Here is more info: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/tips-for-pruning-hibiscus-plants-when-to-prune-hibiscus.htm