Nutrient Monitoring of Blue Hydrangeas
Brian Whipker and Josh Henry, North Carolina State University, and Garrett Owen, Michigan State University
This nutrient monitoring guide highlights the unique requirements of blue hydrangeas.
Nutrient Monitoring of Pink/White Hydrangeas
Brian Whipker and Josh Henry, North Carolina State University, and Garrett Owen, Michigan State University
The nutritional requirements of pink and white hydrangeas vary from blue sepal types. Nutrient monitoring requirements for pink and white hydrangeas are highlighted. Access the guide here.
Mini Hydrangea Poster
Managing the factors that affect sepal coloration in hydrangeas can sometimes be confusing. This mini-poster from North Carolina State University allows you to have a quick reference to keep your nutritional program on track.
Earlier e-GRO Alerts Highlighting Hydrangeas
- Alert 6.04: Nutrient Strategies for Ensuring Blue Hydrangeas - This Alert discusses the methods required to obtain deep blue hydrangeas.
- Video: Hydrangea Blue Coloration
- Alert 6.13 Upper Leaf Tip Necrosis - This Alert helps diagnose between a drought stress and a calcium deficiency.
- Alert 6.14 Upper Leaf Interveinal Chlorosis - This Alert focuses on determining the cause of interveinal chlorosis of the upper foliage.
- Alert 6.15 Lower Leaf Purpling - A low phosphorus strategy is required to maximize the effects of aluminum applications with blue hydrangeas. Going too low can result in the development of deficiency symptoms.