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Editor's Picks

Group photo at Harvard Herbarium
The Harvard University Herbaria hosted a novel Oak Taxonomy...
Jeannine Cavender-Bares | Apr 21, 2026
Morgan and friends in Argentina
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
On April 1st, the very day he turned 103, a great friend...
Francisco Garin Garcia | Apr 05, 2026

Plant Focus

Quercus orocantabrica
Roderick Cameron and Carlos Vila-Viçosa give an account of this intriguing species from northwestern Iberia with a complex taxonomic and...

Cultivar Close-up: Quercus robur 'Timuki'

This cultivar was selected by Raimond Cinovskis, from the Botanical Garden of the Academy of Sciences, Salapils, Latvia and was introduced by Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Průhonice, Czech Republic.

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A young Quercus robur 'Timuki' stock plant at Pavia Nurseries, Belgium © Kurt Van Nieuwenhuyse

It was named after the location in Latvia where the original tree was found, a spontaneous seedling with outstanding purple foliage. The foliage keeps it purple color all season and will even darken (nearing black at times) as the season wears on. This selection was first propagated from the ortet in 1997 and was registered in the Czech Republic in 2010. ‘Timuki’ was published in Enzyklopädie der Gartengehölze (Bärtels 2001) and Acta Horticulturae (2011). This selection is said to maintain a straight central leader and develop a pleasing pyramidal shape in youth, broadening to a typical decurrent shape at maturity. This selection is only offered in Europe at this time and can be found at Pavia Nurseries, Bömer Nursery, and a few others. 

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Quercus robur 'Timuki' at Latvian National Botanic Garden
Photo courtesy of Arcangeli Gino Vivai
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A grafted specimen of the cultivar at Pavia Nurseries, Belgium
Photo: © Kurt Van Nieuwenhuyse