The American Hosta Society (AHS) is a not-for-profit organization. The AHS is organized exclusively for educational and scientific purposes, and especially to promote, encourage, and foster the development of the genus Hosta and public interest therein.
The HostaLibrary is the largest and most comprehensive information resource for the Genus Hosta. It features photos of thousands of hosta cultivars and much other information. Photos are submitted by numerous contributors and generally are accurate representations of the cultivar. The HostaLibrary is an independent resource not under control of any authority or country, and is a free resource for all to use.
The Hosta Lists represent a compilation of 111 individual lists which group hosta cultivars and species according to various characteristics. These lists have been compiled over a twenty-six-year period and are updated annually. Containing over 26,000 entries, this is the most complete and accurate collection of lists available.
The Delaware Valley Hosta Society has a wealth of excellent articles pertaining to Hosta. There are articles on the following topics:
Bob Axmear has a great article on how to grow Hostas from seeds.
The Delaware Valley Hosta Society has a great article on growing hosta from seed.
The Delaware Valley Hosta Society has a great article on What Can Go Wrong with a hosta.
The Delaware Valley Hosta Society has a comprehensive article on the hosta virus X. What is HVX? What does it look like? How to test for it.
The Hosta Library has great information with a bunch of photos of HVX and how it presents on many different hosta.
This is a great video on Hosta virus X by Chris Wilson. The video is about an hour long.