WEIGELA CONTINUED GROWTH REGULATORS Avoid pinching until after spring flowering. Light tip pinching and trimming is used mostly on Weigela to control plant height after flowering and in building a compact mound. Cultural practices such as cooler holding temperatures and good air movement in an open environment can also help control plant height and assist in finishing a high-quality crop. Spilled Wine is naturally compact and shouldn't require the use of growth regulators. OTHER TIPS When growing larger containers like 3 gallons, it is best to bulk them in the summer the year before they are to be sold. This allows additional root growth, as well as additional pruning. Any surplus 1 gallon containers can easily be bumped into 3 gallon containers in the fall for spring sales. PEST and DISEASE MANAGEMENT Spider Mites are the most prevalent insect pests associated with Weigela. Scout and spray preventatively in April and May to prevent outbreaks in June and July, when Spider Mites are more actively growing. We recommend implementing a good IPM program, as well as early releases of Biological Control to help control insect populations. Avoid using M-Pede® on Weigela because it can cause phytotoxicity. The rates and chemicals listed are based on our southeast Michigan growing conditions, and are not recommended for nationwide application. Please adjust the rates and spray applications to your location and facility. 97