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In the Trompenburg Arboretum archive, where we keep our letters, I recently found a letter from Heino Heine dating back to 1973. Attached to it was a postcard and herbarium specimens of Quercus...
Posted Tue, 2017-03-21 16:10 in Trompenburg Gardens and Arboretum's blog
A hybrid selected at Trompenburg Arboretum has parents that are oceans apart, yet closely related.
Posted Fri, 2016-04-01 18:23 in Trompenburg Gardens and Arboretum's blog
The IOS has been invited to view the collections of two of our members in Ireland: that of Sir Brendan Parsons, the Earl of Rosse, at Birr Castle; and that of Johnny Couchman, near Carlow. There...
Posted Thu, 2016-03-31 14:38 in Trompenburg Gardens and Arboretum's blog
Peter Young's book Oak and an anecdote about South African oaks.
Posted Sat, 2015-05-23 20:14 in Trompenburg Gardens and Arboretum's blog
Very unexpectedly, in her home in Klein Zundert, The Netherlands, Jo Bömer passed away on March 4th 2015.
Posted Thu, 2015-03-12 21:55 in Trompenburg Gardens and Arboretum's blog
A brief trip to Taiwan viewing Fagaceae.
Posted Tue, 2014-12-02 11:45 in Trompenburg Gardens and Arboretum's blog

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Plant Focus

Quercus afares, Kew, © James MacEwen
The only oak species endemic to Africa is rare in cultivation. It shouldn't be.

Trompenburg Gardens and Arboretum's blog

In the Trompenburg Arboretum archive, where we keep our letters, I recently found a letter from Heino Heine dating back to 1973. Attached to it was a postcard and herbarium specimens of Quercus...
Posted Tue, 2017-03-21 16:10 in Trompenburg Gardens and Arboretum's blog
A hybrid selected at Trompenburg Arboretum has parents that are oceans apart, yet closely related.
Posted Fri, 2016-04-01 18:23 in Trompenburg Gardens and Arboretum's blog
The IOS has been invited to view the collections of two of our members in Ireland: that of Sir Brendan Parsons, the Earl of Rosse, at Birr Castle; and that of Johnny Couchman, near Carlow. There...
Posted Thu, 2016-03-31 14:38 in Trompenburg Gardens and Arboretum's blog
Peter Young's book Oak and an anecdote about South African oaks.
Posted Sat, 2015-05-23 20:14 in Trompenburg Gardens and Arboretum's blog
Very unexpectedly, in her home in Klein Zundert, The Netherlands, Jo Bömer passed away on March 4th 2015.
Posted Thu, 2015-03-12 21:55 in Trompenburg Gardens and Arboretum's blog
A brief trip to Taiwan viewing Fagaceae.
Posted Tue, 2014-12-02 11:45 in Trompenburg Gardens and Arboretum's blog

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

Supporting Institutional Members

The John Fairey Garden

Standard Institutional Members

Bartlett Tree Experts logo
Catalina Island Conservancy logo
Forrest Keeling Nursery logo
Houston Botanic Garden logo
KOAGI logo
Oak Spring Foundation
Rice University
San Diego Botanic Garden logo
San Diego Zoo Wildlife Alliance logo
South Carolina Botanical Garden
The Huntington