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Editor's Picks

Karl Georg Theodor Kotschy was an Austrian botanist and...
Eike Jablonski | Jun 11, 2016
Quercus grisea - Greenlee County, AZ
This article is an account of the oak field trip organized...
Charles Snyers | Sep 22, 2017
North American oaks have a northern temperate origin and...
Website Editor | Oct 12, 2017

Plant Focus

Quercus acutissima subsp. kingii
Quercus acutissima Carruth. is a species whose natural distribution covers a vast territory in East and Southeast Asia, from central Nepal...

Gert Fortgens's blog

Barking up the Right Trees

A young and vigorously growing Quercus ‘Maya’ that we planted in 2007 showed a minor crack at the base of the trunk after the winter of 2011-2012...

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 macrocarpa.

Quercus ‘Tromp Deerpon’, an Extraordinary Hybrid

A hybrid selected at Trompenburg Arboretum has parents that are oceans apart, yet closely related.

Warming Up for an Oak Tour to Ireland

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 are many splendid gardens and collections to visit. Last year I visited some of them.

Good Oaks in South Africa

Peter Young's book Oak and an anecdote about South African oaks.

Jo Bömer (1943 - 2015)

Very unexpectedly, in her home in Klein Zundert, The Netherlands, Jo Bömer passed away on March 4th 2015.

Taiwan Proud of its Oaks!

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