International Coleus Society Encyclopedia of Cultivars:

Book excerpt: This is the 2017 revision and supersedes all previous volumes in this series. More than 1600 cultivars of Coleus blumei, Coleus rehneltianus, and the hybrid Coleus x hybridus have been named since the middle of the 19th century. The International Coleus Society took up the cataloging and registration of all these cultivars when we started in 2013 using the existing files of the New Ornamentals Society and our numerous expert members. This volume provides descriptions to more about 95% of the cultivars beginning with the letter A and ending in F and includes screen-wide high-resolution digital images of modern cultivars, color plates from old catalogs, and scans of other nursery listings back to 1851 and including some 2017 introductions. This 224 page volume is just the beginning in our never ending goal to understand the genus Coleus and document it's history in gardens. Hundreds of hours of study, pouring over old catalogs, literature, garden records, patents, cultivar release notifces, and the memories of modern Coleus experts went into this presentation. Only cultivars from A to F are included. Cultivars of G to Z will be offered as separate volumes in the future.