National Societies & Databases

The American Begonia Society
The Royal Botanical Garden at Edinburgh 
The Association of Australian Begonia Societies 
The IUCN Redlist 
iBegonias International Database 

Begonia Websites/Blogs

Collection de Begonias (must be translated)
Begonia Club (Japan)
In Search of Small Things 

Social Media

Planet Begonia (facebook)
The Begonia Brigade (instagram)
Deannster (instagram)

Local Plant Societies (Portland, OR)

The Pacific Northwest Vivarium Society
The Mt. Hood Gesneriad Society
The Hardy Plant Society of Oregon
The Rhododendron Society 

Local Gardens (Portland, OR)

Crystal Springs Rhododendron Garden 
Leach Botanical Garden 
Hoyt Arboreatum 
Portland Japanese Garden
Lan Su Chinese Garden 
International Rose Test Garden