Charles Thomas – In His Own Words

Charles Brosius Thomas passed away in the early hours of December 7, 2020 at York Hospital in Pennsylvania. Surrounded by his loved ones, his passing was peaceful. Born in Frederick, MD on September 19, 1935, Charles was 85 years old and led a full and rich life. In 1984, he founded the International Waterlily Society…

The results for the 2020 IWGS New Waterlily Competition are available.

The IWGS is excited to announce the winners of the 2020 New Waterlily Competition. Visit our webpage at for a list of the winner.  

Identifying Nutrient Deficiencies in Waterlilies

We are pleased to publish  this article from the  June IWGS Journal Vol. 35-2,  written by by Dr. Martin Staines and Kathy Sassoon.  Click here to read  “Identifying Nutrient Deficiencies in Waterlilies“.

Winter Issue of the Water Garden Journal

The Winter issue of the Water Garden Journal has been published. To access  Vol 34-4 , go to, or click on the Resource Tab of this web page. Please note that you must be an IWGS member to access the Journal.


New Official Cultivar Names It has recently come to my attention that there is still some confusion about plant registration as well as the benefits of registering new plant cultivar names. This article will aim to clear up this confusion by explaining the registration process and clarifying the role of plant registrars. The IWGS serves…

Growing Australian Waterlilies – Rich Sacher

Rich Sacher’s keynote address at the 2019 IWGS Symposium in Le Temple-sur-Lot, France.  The keynote address is presented in 4 languages: English Chinese French Spanish

Saving Tropical Lily Tubers with Rot

How to save and over winter any tropical tuber which is rotting (read more)

To Bloom or To Tuber?

Ever wonder how to get a tropical water lily to tuber vs bloom? (read more)

Sprouting Lotus Seeds

File, sand, or nick the seeds so water can easily penetrate. Carefully go through the outer layer to the cream-colored inside.   Sand either the side or rounded end, however doing the end helps it sprout faster. Carefully observe what’s happening with a clear container, such as a plastic cup or soda bottle. Add the seeds and hot, but…

Water Snowflake

Water snowflake (Nymphoides spp.) is part of a large family of what are commonly called waterlily-like plants because their leaves float at the surface of the water while the roots are anchored in soil below – much like the habit of a waterlily. The plant is constantly reproducing, spreading runners out along the surface of…

Wanvisa Best New waterlily 2010

A hardy waterlily was named Best New Waterlily for 2010, acing out 30 other entrants in the competition sponsored by the International Waterlily and Water Gardening Society (IWGS).  Nymphaea ‘Wanvisa’ is the first hardy variety to be named ‘Best in Pond’ since the competition began in 1997.      Dr. Nopchai Chansilpa of Thailand, a waterlily hybridizer,…

Planting Your Pond: Design Considerations

You’ve seen the house before. The one that sits in the middle of the block looking like it stepped outside with no clothes. Trees haven’t been planted so there’s no leafy fringe to shade it from the sun. It’s void of any landscaping that helps tie the home to the yard. It just … sits…