Hibiscus are hardy plants that grow rapidly, and are known for brightly colored flowers and full, lush growth. The plants need extensive pruning in late spring to early summer to stimulate future growth and optimum flower production. There are some key things to keep in mind when pruning hibiscus tress to ensure that you care for and trim the plant correctly.
Sterilize the pruning shears with an old cloth dipped in rubbing alcohol. Wear protective gardening gloves before pruning, as hibiscus branches can be sharp and brambly.
Prune any dead, diseased or broken branches all the way to the trunk.
Prune all of the hibiscus branches 1/3 of the way back, about 1/4 inch directly above the nearest node. Every branch needs to have about two to three nodes on them after the trimming. These promote future growth.
Prune back any branches that are criss-crossing other branches or growing directly in the center of the hibiscus.