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In the early summer, when the constant battle against weeds had us nearly to the point of insanity, we decided to escape for a couple of days southwards over the Pyrenees via the Somport Pass...
chapter_house_detail_3.jpg
Posted Mon, 2019-10-07 23:50 in Shaun Haddock's blog
Everyone who knew Lloyd will be as shocked and saddened as I was to learn of his recent death after a short illness.
lloyd_kenyon.jpg
Posted Sat, 2019-08-24 11:29 in Shaun Haddock's blog
It may surprise you to learn that we are not the first Oak Society! Another Oak Society used to meet at the Crown and Anchor pub on the Strand in London.
Posted Sat, 2018-12-15 21:55 in Shaun Haddock's blog
Abundant rain in southwest France in the early part of this year has fostered a bumper seed crop at Arboretum de la Bergerette, some (such as Quercus emoryi) already ripe: thus my thoughts turn...
Posted Thu, 2018-08-16 15:31 in Shaun Haddock's blog
Bees are thieves! It’s official! After my recent note pointing out that bees were seemingly harvesting pollen from a Quercus suber without any commensurate benefit to the tree, serendipitously...
Posted Fri, 2018-04-20 20:33 in Shaun Haddock's blog
An oak which breaks the rules... Do oaks have rules? Well, I think so: the rule of survival of the fittest implies that all unnecessary branch structure is unaffordably costly in resources – the...
Posted Fri, 2018-02-16 19:46 in Shaun Haddock's blog
It was a mast year in 2017 here in southwest France, spreading acorns so thickly under some trees they formed a solid carpet. So Quercus pubescens is evidently not in danger for now, but what of...
Posted Fri, 2018-02-16 18:28 in Shaun Haddock's blog
Many readers will have seen the reference on the IOS website to the publication online of the 8th edition of W.J. Bean’s Trees and Shrubs Hardy in the British Isles under the auspices of the...
Posted Fri, 2018-02-16 17:06 in Shaun Haddock's blog
Across the River Tay from Dunkeld, within easy walking distance, are two oaks with connections to the arts.
Birnam Oak, Young Pretender
Posted Wed, 2016-06-08 16:13 in Shaun Haddock's blog
Quercus baloot is a drought-tolerant oak found in the drier valleys not only in Afghanistan, but also in the north of what is now Pakistan and into Kashmir; by and large it evaded introduction...
plant_a_002_type_1.jpg
Posted Sat, 2016-04-02 19:55 in Shaun Haddock's blog
Six years after Hurricane Klaus, disaster strikes again.
Posted Mon, 2015-09-07 20:54 in Shaun Haddock's blog
A visit to the world's largest oak vat.
Posted Wed, 2015-02-25 19:35 in Shaun Haddock's blog

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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

Shaun.Haddock's blog

In the early summer, when the constant battle against weeds had us nearly to the point of insanity, we decided to escape for a couple of days southwards over the Pyrenees via the Somport Pass...
chapter_house_detail_3.jpg
Posted Mon, 2019-10-07 23:50 in Shaun Haddock's blog
Everyone who knew Lloyd will be as shocked and saddened as I was to learn of his recent death after a short illness.
lloyd_kenyon.jpg
Posted Sat, 2019-08-24 11:29 in Shaun Haddock's blog
It may surprise you to learn that we are not the first Oak Society! Another Oak Society used to meet at the Crown and Anchor pub on the Strand in London.
Posted Sat, 2018-12-15 21:55 in Shaun Haddock's blog
Abundant rain in southwest France in the early part of this year has fostered a bumper seed crop at Arboretum de la Bergerette, some (such as Quercus emoryi) already ripe: thus my thoughts turn...
Posted Thu, 2018-08-16 15:31 in Shaun Haddock's blog
Bees are thieves! It’s official! After my recent note pointing out that bees were seemingly harvesting pollen from a Quercus suber without any commensurate benefit to the tree, serendipitously...
Posted Fri, 2018-04-20 20:33 in Shaun Haddock's blog
An oak which breaks the rules... Do oaks have rules? Well, I think so: the rule of survival of the fittest implies that all unnecessary branch structure is unaffordably costly in resources – the...
Posted Fri, 2018-02-16 19:46 in Shaun Haddock's blog
It was a mast year in 2017 here in southwest France, spreading acorns so thickly under some trees they formed a solid carpet. So Quercus pubescens is evidently not in danger for now, but what of...
Posted Fri, 2018-02-16 18:28 in Shaun Haddock's blog
Many readers will have seen the reference on the IOS website to the publication online of the 8th edition of W.J. Bean’s Trees and Shrubs Hardy in the British Isles under the auspices of the...
Posted Fri, 2018-02-16 17:06 in Shaun Haddock's blog
Across the River Tay from Dunkeld, within easy walking distance, are two oaks with connections to the arts.
Birnam Oak, Young Pretender
Posted Wed, 2016-06-08 16:13 in Shaun Haddock's blog
Quercus baloot is a drought-tolerant oak found in the drier valleys not only in Afghanistan, but also in the north of what is now Pakistan and into Kashmir; by and large it evaded introduction...
plant_a_002_type_1.jpg
Posted Sat, 2016-04-02 19:55 in Shaun Haddock's blog
Six years after Hurricane Klaus, disaster strikes again.
Posted Mon, 2015-09-07 20:54 in Shaun Haddock's blog
A visit to the world's largest oak vat.
Posted Wed, 2015-02-25 19:35 in Shaun Haddock's blog

Pages

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