Log in

You are here

It was a great pleasure for me to be able to write about my 31 years of involvement with Arboretum Trompenburg in Rotterdam.
Pages from Gert's book
Posted Thu, 2024-02-15 12:55 in Gert Fortgens's blog
A young and vigorously growing Quercus ‘Maya’ that we planted in 2007 showed a minor crack at the base of the trunk after the winter of 2011-2012...
Posted Thu, 2018-02-15 17:45 in Gert Fortgens's blog

Editor's Picks

Past IOS President Allen Coombes, Curator of Scientific Collections at Puebla University Botanic Garden, discusses leaf variability in Quercus ceirpes (still image from the documentary)
A new documentary by Maricela Rodríguez Acosta
Website Editor | Feb 17, 2026
Quercus miyagii acorn and dried leaves
A rare oak endemic to the Ryukyu Islands of Japan
Elion Jam | Feb 16, 2026
A moss-covered oak (Quercus orocantabrica) in Mata de Albergaria, Peneda-Gerês National Park, Portugal  © Amit Zoran
Steve Potter reviews a new book that features oaks
Steve Potter | Feb 11, 2026

Plant Focus

Quercus canariensis in Cornwall Park, Epsom, Auckland, New Zealand, the champion specimen in New Zealand, planted in the 1920s, 27.2 m tall with a trunk diameter of 209 cm (G. Collett pers. comm. 2026)  © Gerald Collett
Antonio Lambe shares his views on this threatened oak native to Iberia and North Africa

Gert Fortgens's blog

It was a great pleasure for me to be able to write about my 31 years of involvement with Arboretum Trompenburg in Rotterdam.
Pages from Gert's book
Posted Thu, 2024-02-15 12:55 in Gert Fortgens's blog
A young and vigorously growing Quercus ‘Maya’ that we planted in 2007 showed a minor crack at the base of the trunk after the winter of 2011-2012...
Posted Thu, 2018-02-15 17:45 in Gert Fortgens's blog

The International Oak Society acknowledges the generous support of the following institutions:

Supporting Institutional Members

 

Standard Institutional Members

Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden

 

The Huntington
The John Fairey Garden