Oak Open Days

Czech Republic Oak Open Days

By Shaun Haddock | August 16, 2017

Twenty-six participants from ten countries arrived to take part in the European celebration of the IOS’s twenty-fifth birthday at Dušan Plaček’s Quercetum near Podĕbrady in the Czech Republic.

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Oak Open Days in Argentina

By Roderick Cameron | June 10, 2016

The first IOS Oak Open Day event south of the Equator took place April 22-24, 2016, in Argentina.

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UK Oak Open Days 2015

By Shaun Haddock | January 28, 2016

In July 2015 a group of IOS members visited Gredington in north Wales and Ness Botanic Garden near Liverpool, England.

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Oak Open Days at Trompenburg Arboretum

By Shaun Haddock | January 31, 2015

IOS Board member Gert Fortgens welcomed around 30 participants to a most enjoyable two-day "Oak Open Days" event at Trompenburg Arboretum in Rotterdam, Netherlands, on August 28 and 29, 2014.

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Oak Open Days in Gloucestershire, UK - July 6-7, 2014

By Béatrice Chassé | August 2, 2014

A double Oak Open Day: Christine Battle's Congrove Arboretum followed by a visit to the National Arboretum at Westonbirt.

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Mudding in Mississippi: Oak Open Days - June 27-29, 2014

By Dudley Phelps | August 1, 2014

Rain, mud, mosquitos, great trees, and wonderful people, all contributed to a successful Oak Open Day event held in Mississippi, June 27-29. Visitors from eight states gathered in West Point, MS for an event organized by Dudley Phelps and Ryan Russell

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Oaks in Aiken

By Ryan Russell | February 19, 2014

Oak Open Days were held in the incomparable setting of Aiken, SC, during the first weekend of November 2013.

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Clonal Propagation of Oaks

By Charles Snyers ... | September 25, 2013

On Sunday, 22^nd of September 2013, about 30 oak enthusiasts gathered at Pavia Nurseries in Deerlijk, Belgium for an Oak Open Day that was to be devoted to clonal propagation of oaks.

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A Sunny Day in the UK

By Béatrice Chassé | September 24, 2013

On the morning of July 29, 40 oak enthusiasts from Belgium, the Czech Republic, France, the Netherlands, Italy, and the United Kingdom met in Jermyn’s House at the Sir Harold Hillier Gardens for the first Oak Open Day of the year.

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Oak Open Day in Belgium 2011

By Charles Snyers ... | November 18, 2011

A visit to two Belgian collections on a rainy September day, Arboretum Wespelaar and the National Botanical Garden of Belgium.

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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)

"Oaks: the Backbone of Mexico" – New Documentary Film

A new documentary by Maricela Rodríguez Acosta

Website Editor | Feb 17, 2026

In Search of Quercus miyagii: A Field Report from Okinawa

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

Amit Zohran's "Oakollective"

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

Species Spotlight: Quercus canariensis Willd.

Antonio Lambe shares his views on this threatened oak native to Iberia and North Africa