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UK Oak Open Days 2025: Caerhays and Tregrehan

By Stephen Wood | October 27, 2025
Group photo at Tregrehan
Visits to two gardens with collections of oaks and other Fagaceae

Oaks in Oz: Australian Oak Open Days, May 8–13, 2025

By Website Editor | August 11, 2025
Group photo at Mereweather Arboretum
Oak collections and much more in Canberra, New South Wales, and Victoria.

Belgian Oak Open Days: May 29–June 1, 2025

By Website Editor | June 22, 2025
Group photo with champion Quercus arkansana in Bokrijk Arboretum
A team of reporters share their take on the event.

New Zealand Oak Open Days: May 15–18, 2025

By Website Editor | June 21, 2025
Group photo at Guthrie-Smith Arboretum
Four days exploring oaks on the east coast of North Island

Texas Oak Open Days - October 12–16, 2023

By Roderick Cameron | October 21, 2023
Group photos Texas OODs

Five days of oaking in the Lone Star State.

Blowing Out 25 Candles at Starhill

By Charles Snyers ... | October 9, 2017
20170903001-001.jpg

The International Oak Society celebrates its 25th anniversary at Starhill Forest Arboretum.

Pages

Editor's Picks

Group photo at Tregrehan
UK Oak Open Days 2025: Caerhays and Tregrehan
Visits to two gardens with collections of oaks and other...
Stephen Wood | Oct 27, 2025
Special Service Award plaque
IOS Service Awards Presented at the 11th IOS Conference
Plaques presented during the Gala Dinner in Oaxaca
Roderick Cameron | Oct 26, 2025
Group photo at Oaxaca Conference
The 11th IOS Oak Conference in Oaxaca
140 participants from 20 countries attended the Triennial...
Nikola Šušić | Oct 25, 2025

Plant Focus

Quercus vulcanica acorn and leaves
Species Spotlight: Quercus vulcanica Boiss. & Heldr. ex Kotschy
An oak endemic to Turkey
Read more

Oak Open Days

UK Oak Open Days 2025: Caerhays and Tregrehan

By Stephen Wood | October 27, 2025
Group photo at Tregrehan
Visits to two gardens with collections of oaks and other Fagaceae

Oaks in Oz: Australian Oak Open Days, May 8–13, 2025

By Website Editor | August 11, 2025
Group photo at Mereweather Arboretum
Oak collections and much more in Canberra, New South Wales, and Victoria.

Belgian Oak Open Days: May 29–June 1, 2025

By Website Editor | June 22, 2025
Group photo with champion Quercus arkansana in Bokrijk Arboretum
A team of reporters share their take on the event.

New Zealand Oak Open Days: May 15–18, 2025

By Website Editor | June 21, 2025
Group photo at Guthrie-Smith Arboretum
Four days exploring oaks on the east coast of North Island

Texas Oak Open Days - October 12–16, 2023

By Roderick Cameron | October 21, 2023
Group photos Texas OODs

Five days of oaking in the Lone Star State.

Blowing Out 25 Candles at Starhill

By Charles Snyers ... | October 9, 2017
20170903001-001.jpg

The International Oak Society celebrates its 25th anniversary at Starhill Forest Arboretum.

Pages

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

Supporting Institutional Members

Denver BG Logo
The Morton Arboretum logo
San Antonio Botanical Garden logo
 

Standard Institutional Members

Bartlett Tree Experts logo
Catalina Island Conservancy logo
Forrest Keeling Nursery logo
Houston Botanic Garden logo
 
Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
The Huntington
The John Fairey Garden