Oak Open Days

UK Oak Open Days 2020 (CANCELED)

(This event has been postponed due to the ongoing COVID-19 restrictions)

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New Zealand Oak Open Days 2020 (CANCELED)

(This event has been canceled due to the ongoing COVID-19 restrictions) A two-day event featuring visits to Hackfalls Arboretum and Eastwoodhill Arboretum

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UK Oak Open Days 2019

Yorkshire Arboretum, Thorp Perrow, and Gredington Park

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Oak Open Day at Starhill Arboretum

The stateside celebration of the 25th anniversary of the IOS will take place on September 2 at Starhill Forest Arboretum in Menard County, Illinois.

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Oak Open Days at Atherstone and Thenford House, UK

We will visit David Gooder's young oak collection at Atherstone near Coventry on July 17, 2016, and Lord Heseltine's Thenford House in Northamptonshire on July 18.

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Oak Open Day in Gredington

There will be a two-day Oak Open Day event in the UK in July 2015.

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Trompenburg Tuinen & Arboretum

There will be a two-day event at Trompenburg Arboretum in The Netherlands on August 28-29, 2014.

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Oak Open Days in Starkville - West Point area, Mississippi

The International Oak Society, Mossy Oak Nativ Nurseries, and Mississippi State University cordially invite you to Oak Open Days, June 28-29, 2014 in the beautiful state of Mississippi.

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Oak Open Days in Congrove and Westonbirt

The first European event of 2014 will take place in the UK, on July 6 and 7.

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Aiken Oak and Horticultural Tour

The City of Aiken has in cultivation what is believed to be the most comprehensive collection of oaks in the United States. The week-end will be devoted to discovering this collection and more.

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Editor's Picks

Taxonomists Huddle at Harvard

The Harvard University Herbaria hosted a novel Oak Taxonomy...

Jeannine Cavender-Bares | Apr 21, 2026

Argentine Oak Collections through Italian Eyes

Visits to three collections of Quercus in Buenos Aires...

Morgan Santini | Apr 05, 2026

Michel Duhart and Paco Garin at Jardín Botánico Wilson, Costa Rica

In Memoriam: Michel Duhart (1923–2026)

On April 1st, the very day he turned 103, a great friend...

Francisco Garin Garcia | Apr 05, 2026

Plant Focus

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...