Caring for Hammerbush » Watering, fertilizing, cutting & more How is the hammer bush poured? When and how do you fertilize hammer shrubs? Does a Hammerbush need pruning? Is repotting necessary? What diseases and pests can occur? How is the Hammerbush overwintered? Help the development of the site, sharing the article with friends! Help the development of the site, sharing the article with friends! Category: Vegetable garden