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140 participants from 20 countries attended the Triennial Conference
Oak barrels are used to age wine and spirits
An oak endemic to Turkey
A hybrid with surprising fall color
In August of this year, traditionally a quiet month for news, the UK’s Sunday Times ran a story headed “
Four IOS members have volunteered to serve on the Board of Directors during the 2025–2028 term.
Oak collections and much more in Canberra, New South Wales, and Victoria.
A controversial publication proposes to change the traditional spelling of botanist Luis Née's last name.
The IOA's 3rd Conference was held on July 3, 2025
A historic Quercus garryana is the cause of unrest in Tumwater, Washington State, USA.
The Major Oak of Sherwood Forest in Nottinghamshire appears to be close to death.
A naturally occurring hybrid between Quercus robur and Q. alba.

Pages

Editor's Picks

Michel Gandoger
While working on a list of synonyms of European White...
Roderick Cameron | Aug 24, 2026
Cover of Select Native Asian Oaks Gap Analysis
Report led by The Morton Arboretum will help prioritize oak...
Website Editor | Aug 06, 2026
A1's 2024 crop of acorns
Motivation I live in the village of Dolné Dubové...
Jozef Čapkovič | Jul 20, 2026

Plant Focus

Quercus afares, Kew, © James MacEwen
The only oak species endemic to Africa is rare in cultivation. It shouldn't be.

All Articles

140 participants from 20 countries attended the Triennial Conference
Oak barrels are used to age wine and spirits
An oak endemic to Turkey
A hybrid with surprising fall color
In August of this year, traditionally a quiet month for news, the UK’s Sunday Times ran a story headed “
Four IOS members have volunteered to serve on the Board of Directors during the 2025–2028 term.
Oak collections and much more in Canberra, New South Wales, and Victoria.
A controversial publication proposes to change the traditional spelling of botanist Luis Née's last name.
The IOA's 3rd Conference was held on July 3, 2025
A historic Quercus garryana is the cause of unrest in Tumwater, Washington State, USA.
The Major Oak of Sherwood Forest in Nottinghamshire appears to be close to death.
A naturally occurring hybrid between Quercus robur and Q. alba.

Pages

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

Supporting Institutional Members

The John Fairey Garden

Standard Institutional Members

Bartlett Tree Experts logo
Catalina Island Conservancy logo
Forrest Keeling Nursery logo
Houston Botanic Garden logo
KOAGI logo
Oak Spring Foundation
Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden
The Huntington