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Editor's Picks

Pages from Gert's book
It was a great pleasure for me to be able to write about my...
Gert Fortgens | Feb 15, 2024
Quercus marlipoensis acorns
A new study has analyzed the germination characteristics of...
Website Editor | Feb 15, 2024
Gall on Quercus grahamii
A new species of oak gall wasp has been named in honor of...
Website Editor | Feb 14, 2024

Plant Focus

A small but mature Alabama sandstone oak producing acorns © Patrick Thompson
A Critically Endangered dwarf oak 

Gardens & Arboreta

The Iturraran Botanical Garden

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One of the world's leading oak collections is located in Basque Country, northern Spain.

Bayard Cutting Arboretum

Bayard Cutting Arboretum

A 691-acre arboretum in Great River, New York, USA, with a collection of native and non-native oaks.

Oaks in Two Parks of the Northern Great Plains

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This report highlights two sites near the limits of the footprint of Quercus macrocarpa in north central North America: the Prairie Arboretum in Freeman, in southeast South Dakota, and the Assiniboine Forest, in Winnipeg, Manitoba.

The Wivenhoe Park Millennium Oaks Collection

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An article by Maria Fremlin describes the oak collection in Wivenhoe Park at the University of Essex, Colchester, in the United Kingdom.

The Botanical Garden of Porto is located on the west side of the city of Porto, on a plateau overlooking the mouth of the Douro River and the Atlantic Ocean. Currently covering 4 hectares, it is part of the grounds of the University of Porto campus and is situated on what was once Quinta do Campo Alegre, a historic estate formerly on the outskirts of Porto. 

An International Accreditation Program for Arboreta

Arboretum Wespelaar

ArbNet is an interactive community of arboreta, sponsored and coordinated by The Morton Arboretum in cooperation with the American Public Gardens Association and Botanic Gardens Conservation International. Its Arboretum Accreditation Program recognizes arboreta at various levels of development and capacity, based on an arboretum’s collections and curation, education and public programming, scientific research and conservation initiatives, governance, and staff or volunteer support.

Oaks at Armstrong State University Arboretum

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Philip Schretter has amassed an interesting collection of oaks at the campus-wide arboretum at Armstrong State University.

Q. alnifolia

Bill Funk writes about his oak collection at Mereweather Arboretum in Victoria, Australia.

 

The Oaks at Eastwoodhill

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Eastwoodhill is the National Arboretum of New Zealand, located on the East Coast of the North Island 35 km northwest of Gisborne. It is considered to be the largest collection of Northern Hemisphere trees growing south of the Equator, and the over 3,600 taxa that can be found there include a large number of oak species.

San Miguel Arboretum, Argentina

San Miguel

IOS member Peter Laharrague's arboretum, San Miguel, is located near the town of Coronel Pringles in Argentina, at 38 degrees below the Equator. 

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