by Michael A Dirr (Author), Bonnie Dirr (Illustrator)
This Guide is the definitive book/garden treatise on the genus covering the major and minor species as well as Decumaria, Dichroa, Pileostegia, Platycrater, and Schizophragma, related genera now submerged into Hydrangea. Pertinent information for each includes identification, newest cultivars, culture, disease/insects, propagation, garden worthiness, breeding strategies, photographs, and line art. The 580 color photographs highlight the species and cultivars. Five Appendices discuss the author’s favorite hydrangeas, fertilizers/propagation materials, breeding protocols, and European breeders.