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Editor's Picks

Yoko and John planting acorns
Yoko’s Oaks
"Japanese oaks" planted at Coventry Cathedral
Steve Potter | Dec 21, 2025
Group with Quercus macdougallii
Post-Conference Tour: Oaxaca
Six days exploring Oaxaca’s oak diversity, as reported by...
Wally Wilkins | Dec 10, 2025
One of the first planted circles on Hampton Common, London, in partnership with Orleans House Gallery 2025. © Studio Ackroyd & Harvey
Virtuous Circles: Oaks and the Art of Ackroyd & Harvey
Oaks planted in circles as a continuation of the artwork...
Steve Potter | Dec 10, 2025

Plant Focus

Champion Quercus castaneifolia in Iran
Species Spotlight: Quercus castaneifolia C.A.Mey
Chestnut-leaf oak in habitat and in cultivation
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Triennial Conferences

2022 – New Mexico State University, Las Cruces, New Mexico, USA (Chair: Ryan Russell)

Proceedings

Session Recordings

IOS Las Cruces 2022

 

2018 – The University of California, Davis, California, USA (Chair: Emily Griswold)

Proceedings

Group photo Davis

2015 – The Morton Arboretum, Illinois, USA (Chair: Andrew Hipp) 

Proceedings

Group photo Lisle 2015

2012 – INRA and Université de Bordeaux I, Bordeaux, France (Chair: Thierry Lamant)

Proceedings

 

2009 – Benemérita Universidad Autónoma de Puebla, Puebla, Mexico (Chair: Maricela Rodriguez Acosta)

Proceedings

IOS Puebla 2006

 

2006 – Texas A&M University, Texas, USA (Chair: David Richardson)

Proceedings

IOS Dallas 2006

 

2003 – King Alfred College, Hampshire, England (Chair: Allen Coombes)

Proceedings

IOS UK 2003

 

2000 – The North Carolina Arboretum, North Carolina, USA (Chair: Ron Lance)

Proceedings

IOS Ashville 2000

 

1997 – The Huntington Botanical Garden, California, USA (Chair: Amy Larson)

Proceedings

IOS Huntington 1997

 

1994 – The Morton Arboretum, Illinois, USA (Chair: Guy Sternberg) 

Proceedings

IOS 1994 Lisle

 

 

Images © Guy Sternberg