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The American Rhododendron Society is a non-profit organization whose purpose is to encourage interest in and to disseminate information about the genus Rhododendron.  Members' experience ranges from novice to expert.  Society activities include public education, flower shows, seed exchanges, scientific studies, and communication through publications and local and national meetings.  ARS chapters are located throughout the United States and Canada and in Denmark, Finland, Holland, Scotland, Sweden and Sikkim.

Welcome from Bob MacIntyre - ARS President:
On behalf of the many thousands of rhododendron enthusiasts world wide "welcome to our web site."  Here you will find valuable resources which enable you to learn more about the selection and care of rhododendrons.  We hope this will encourage you to "grow" and appreciate the genus Rhododendron (which includes azaleas), and you will include these wonderful plants in your garden/landscape.   Rhododendrons can be grown almost anywhere in the world, from the tropics to the Himalayas (home to a large population of the species which are parents to many cultivated hybrids seen in gardens around the world).

Among Society members, you will find many who share common interests whether you are a professional grower, amateur or sophisticated gardener.  I encourage you to find a chapter in your area (listings occur on the Chapters section in the web site menu) and visit them for an opportunity to join the Society.  - "Come see what we have to offer" - We would welcome you as a member!

Need help growing Rhododendrons?
Learn how to select, plant, prune, feed, transplant and propagate rhododendrons and azaleas in the ARS' comprehensive care guide.  Also check out the helpful "how-to" information in articles previously published in the ARS Journal.

Search the ARS Rhododendron Databases
The species and hybrid database provides descriptions for over 1450 rhododendrons.  Find plants by name, flower color, height in 10 years, hardiness, bloom time, etc.  Also search the azalea database listing 400 different azalea varieties.

Rhododendron Photo Gallery
View over 2000 photo images of rhododendron and azalea hybrids and species.  The Society is pleased to make available a searchable database of digital photo images for rhododendron lovers.  Read how to access the images.

Rhododendron Blog - New
The "All about Rhododendrons" blog is a new feature you will want to read and bookmark.  Whether a seasoned-pro or growing a rhododendron for the first time you will find many blog entries of interest.

ARS Journal
Join the ARS and receive the quarterly ARS Journal.  Articles cover culture, propagation, hybridizing, gardens, companion plants, exploration, scientific research and Society events and news.

Quarterly Bulletin & ARS Journal Electronic Archive
Previously published issues of the ARS Quarterly Bulletin and Journal are available on-line at Virginia Tech's Digital Library and Archive. Visit the "Archive"

ARS Online Store: - New
Every purchase benefits the ARS at no extra cost. features ARS logo caps, visors, shirts, jackets, and computer bags; and nationally known merchants’ online stores.  When shopping in stores, get a gift card online first.  Also, chapter programs can be downloaded.

megaphone 2015 ROY Plants
The ARS proudly announces its Rhododendron of the Year (ROY) awards for 2015.  Chosen for excellent foliage, flower and habit, these beautiful rhododendron varieties make wonderful additions in your garden. More information.

2015 ARS Fall Conference  - New
Long Island's Legacy Revisited - October 16 -17, 2015
Plan on joining your friends and fellow rhododendron enthusiasts for "Autumn in New York".  The Fall Regional Conference will be held at the Islandia Marriott, Islandia, Long Island, NY.  Plans call for a relaxed agenda, several speakers who will present fascinating programs, and a Hybridizers' Roundtable substantially expanded in breadth and duration.  An exciting array of one year grafts will be featured at the Plant Sale, drawn from among the most spectacular new hybrids not otherwise available.  The event will also feature a Photo Contest, Foliage Show and Book Sale.  See JARS Spring 2015 for more information on the event and registration form. $160 inclusive price covers registration fee, Friday night's welcome reception and Saturday's banquet dinner.

2015 Gold and Silver Medal Awards
The Society takes great pleasure in presenting its Gold Medal honor to Karel Bernady of the Greater Philadelphia Chapter and to Bruce Palmer of the Eureka Chapter, and its Silver Medal to Terry Richmond, Mount Arrowsmith Chapter, for their significant contributions to the Genus Rhododendron.

Call for 2016 Research Grant Proposals - New
The Research Committee is pleased to announce its call for applications for rhododendron and azalea research grants.  Awards up to $5,000 are available.  Researchers are encouraged to submit project proposals before the March 1, 2016 deadline.  Application information

Proven Performer Lists
Identify plants that perform well in your neighborhood as selected by members in ARS chapters near where you live.

Rhododendron Nursery Finder
Locate nurseries near where you live.  Find helpful information from ARS Commercial member growers.

Vireya Information
Looking for vireya information?  A link to Chris Callard's comprehensive vireya web site can be found in the drop down menu at page top under "Plant Data".

On-line Plant Name Registration
North Americans desiring to name rhododendrons or azaleas can easily do so on-line.

Coalition of American Plant Societies
ARS participates in annual Plant Society summit to discuss common opportunities, challenges, and potential areas of cooperation.

Make A Gift to Support the American Rhododendron Society
Would you like to honor a special person or event or memorialize a friend or loved one?  A donation to the ARS Endowment Fund or a contribution to the Research Foundation of the ARS can make that happen.  More information

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American Rhododendron Society
Executive Director: P.O. Box 525, Niagara Falls, NY 14304
Ph: 416-424-1942   Fax: 905-262-1999   E-Mail:
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