Ulmus 'Rebona'

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Ulmus 'Rebona'
Ulmus Rebona (Berlin Heinersdorf - Treskowstrasse) 120606a.jpg
'Rebona', Berlin Heinersdorf-Treskowstrasse
Hybrid parentageU. davidiana var. japonica × U. pumila

Ulmus 'Rebona' is an American hybrid cultivar raised by the Wisconsin Alumni Research Foundation (WARF) as selection 'W916', derived from a crossing of Japanese Elm clone W43-8 = 'Reseda' with Siberian Elm clone W426 grown from seed collected from a street tree at Yankton, South Dakota.[1] The tree was registered in 1993 by Conrad Appel KG, of Darmstadt (ceased trading 2006) and is a sibling of 'New Horizon' (selection 'W917'). In Europe, 'Rebona' is marketed as a Resista elm [1] protected under E U breeders' rights (E U council decision 2100/94).


'Rebona' bears a close resemblance to its sibling 'New Horizon', but requires less maintenance owing to a better leader. The tree grows rapidly, developing a fastigiate pyramidal shape with ascending branches. The glossy clear-green leaves are comparatively small, though slightly larger than those of 'New Horizon'.[2]

Pests and diseases[edit]

'Rebona' is highly resistant to Dutch elm disease, rated 5 out of 5.[2]


'Rebona' has been widely planted in Germany as a street tree [2] [3]. It is widely available in the Netherlands, and to a lesser extent in France and the UK.






  1. ^ Santamour, Frank S.; Bentz, Susan E. (May 1995). "Updated Checklist of Elm (Ulmus) Cultivars for use in North America". Journal of Arboriculture. 21 (3): 122–131. Retrieved 20 June 2016.
  2. ^ a b Heybroek, H. M., Goudzwaard, L, Kaljee, H. (2009). Iep of olm, karakterboom van de Lage Landen (:Elm, a tree with character of the Low Countries). KNNV, Uitgeverij. ISBN 978 90 5011 281 9