“Direct Mapping of Hydrangea Blue-Complex in Sepal Tissues of Hydrangea macrophylla.” Sci. Rep.(2019). DOI: 10.1038/s41598-019-41968-7. Schreiber, Henry. “Curious Chemistry Guides Hydrangea ...
Diamond Rouge needs to be pruned by 1/3 to 1/2 in late winter and early spring since blooms occur on new growth only. It performs best in well-drained soil. Focal point in a summer or fall garden ...