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A new book provides a comprehensive guide to the skills and knowledge involved in grafting temperate woody plants.
Ofri Bar's graduate thesis, A-Sharnu, is a program to regenerate Mt. Tabor oaks (Quercus ithaburensis) in the Sharon region.
Acorns can be a source of cheap plant material, in part due to underutilization, so from an economical perspective they have a high...
For nearly 15 years, Nina Bassuk and her grad students at the Cornell Urban Horticulture Institute (UHI) have been developing hybrid oaks...
Dwarf cultivars can be ideal for a small garden. Here are three "mini oaks". 
An admirable community effort in the town of Havelock North in New Zealand’s Hawke’s Bay has saved dozens of 80-year-old oaks that had been...
This report highlights two sites near the limits of the footprint of Quercus macrocarpa in north central North America: the Prairie...
An oak planted to commemorate the foundation of the city of Sacramento turned 80 this year, and the IOS has helped set the record straight...
Marcie Mayer’s new book, Eating Acorns, has soft “wipeable”covers that seem resistant to kitchen stains and acorn-flour fingerprints, ideal...
Fourteen participants mustered in Yorkshire, UK, on June 17th to commence the 2019 European Oak Open Days, having found their way from...
The Morton Arboretum is pleased to announce the release of the Conservation Gap Analysis of Native U.S. Oaks.
The Morton Arboretum, in collaboration with Botanic Gardens Conservation International U.S., are conducting a global ex-situ collections...

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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)
A new documentary by Maricela Rodríguez Acosta
Website Editor | Feb 17, 2026
Quercus miyagii acorn and dried leaves
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
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
Antonio Lambe shares his views on this threatened oak native to Iberia and North Africa

All Articles

A new book provides a comprehensive guide to the skills and knowledge involved in grafting temperate woody plants.
Ofri Bar's graduate thesis, A-Sharnu, is a program to regenerate Mt. Tabor oaks (Quercus ithaburensis) in the Sharon region.
Acorns can be a source of cheap plant material, in part due to underutilization, so from an economical perspective they have a high...
For nearly 15 years, Nina Bassuk and her grad students at the Cornell Urban Horticulture Institute (UHI) have been developing hybrid oaks...
Dwarf cultivars can be ideal for a small garden. Here are three "mini oaks". 
An admirable community effort in the town of Havelock North in New Zealand’s Hawke’s Bay has saved dozens of 80-year-old oaks that had been...
This report highlights two sites near the limits of the footprint of Quercus macrocarpa in north central North America: the Prairie...
An oak planted to commemorate the foundation of the city of Sacramento turned 80 this year, and the IOS has helped set the record straight...
Marcie Mayer’s new book, Eating Acorns, has soft “wipeable”covers that seem resistant to kitchen stains and acorn-flour fingerprints, ideal...
Fourteen participants mustered in Yorkshire, UK, on June 17th to commence the 2019 European Oak Open Days, having found their way from...
The Morton Arboretum is pleased to announce the release of the Conservation Gap Analysis of Native U.S. Oaks.
The Morton Arboretum, in collaboration with Botanic Gardens Conservation International U.S., are conducting a global ex-situ collections...

Pages

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

Supporting Institutional Members

 

Standard Institutional Members

Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden

 

The Huntington
The John Fairey Garden