Rhododendron Resources

Caution:  Many rhododendrons and azaleas being sold at big-box nurseries and garden centres are unfortunately being mislabeled. This can be very frustrating for buyers, and may reflect badly on the genus as a whole. If possible, purchase plants while they’re in bloom so you know what you’re getting.  


These short educational talks were originally presented by Dr. Glen Jamieson at the Mount Arrowsmith Rhododendron Society monthly meetings. With his kind permission, the transcripts have been made available to the public for personal use only. Please contact us if you wish to use any part of them commercially or for profit.  All rights reserved by Dr. Glen Jamieson.

Lepidotes vs Elepidote Rhododendrons

Corolla vs Calyx vs Corona
Indumentum and Tomentum
Roots and a Happy Plant

The Basis of Life
Fertilizers 1
Fertilizers 2

Plant Pigments
Red Leaved Plants
How Plants Tell Time

Plant Movement 1
Plant Movement 2

Sex in the Garden
Sex in the Garden Update



Rhododendron and Azalea NewsLinks to the newsletters of The American Rhododendron Society.

Rhododendrons International – An online rhododendron journal not associated with any existing rhododendron organization (but supported by all existing organizations) that presents articles in English on any aspect of rhododendrons that are perceived to be of wide interest to rhododendron enthusiasts world-wide.  Edited by MARS’s own Dr. Glen Jamieson.

Siftings from the Compost Pile – A collection of humorous articles about rhododendron culture by award-winning gardener and photographer David Sellars. With his kind permission, this collection has been made available to the public for personal use only. Please contact us if you wish to use any part of them commercially or for profit.  All rights reserved by David Sellars.



The ARS Rhododendron Database – Search rhododendron species and hybrids by name, colour, bloom time, hardiness, and many other parameters.



ARS:  American Rhododendron Society – The parent society for many associated clubs and societies nationwide.

BC chapters of the ARS:
American Rhododendron Society (ARS) District 1
Fraser South Rhododendron Society
Vancouver Rhododendron Society
Nanaimo Rhododendron Society
Victoria Rhododendron Society
Cowichan Valley Rhododendron Society
North Island Rhododendron Society


Nurseries and Growers:

The ARS maintains a database of nurseries and growers at


Public Rhododendron Gardens:

Meerkerk Rhododendron Garden – Whidbey Island, Washington. Take a tour of the gardens, viewing different sections with various species. A scenic page with many photographs, interesting commentary.

Milner Gardens and Woodland – Qualicum Beach, BC.  Home of the Greig Rhododendron Species Garden.

Rhododendron Species  Foundation – Federal Way, Washington.  Dedicated to conservation and education. Includes a plant distribution catalog and list of recommended books for all levels of rhodo growers.


Social media:

Find beautiful rhododendron photos to entertain and inspire you on our Facebook page!


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