In The Hostapedia,
Mark Zilis describes every hosta that he has encountered over the past thirty years.
This includes forms he studied in gardens and nurseries throughout the United States
and those he observed in native habitats and collections in Japan. It encompasses all
cultivars registered with the American Hosta Society and others listed in a wide variety
of publications and websites. The 1900 photos in The Hostapedia highlight the most
important hostas, as well as many unusual collector's plants and hosta oddities.