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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.

Pages

Editor's Picks

Quercus coccifera, 97 cm dbh and 15 m canopy spread
Cyprus, April-May 2026 – Vacation Impressions
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Ezra Barnea | Jun 13, 2026
Lainey Kirshberger and Ryan Silver, students at Oklahoma State University, participated in the fieldwork and will lead the genetic and epigenetic analysis under the supervision of Dr. Antonio R. Castilla.
Epigenetics as a Potential Mechanism of Rapid Response to Climate Change in the Endangered Oak Quercus hinckleyi
Endangered oak Quercus hinckleyi shows strong genetic...
Website Editor | Jun 09, 2026
The current Red List status and modelled outlook for the eight Californian oak species, plus tanoak
The Threat to California’s Oaks Is Greater than Had Been Anticipated
New paper should significantly change our approach to...
Steve Potter | Jun 09, 2026

Plant Focus

Quercus orocantabrica
Species Spotlight: Quercus orocantabrica Rivas Mart., Penas, T.E.Díaz & Llamas
Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...
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.

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
South Carolina Botanical Garden

 

The Huntington
The John Fairey Garden