Ulmus 'Rebona'

Ulmus hybrid
Details
Hybrid parentage U. pumila × U. davidiana var. japonica
Cultivar 'Rebona'
Origin USA

An American cultivar raised by the Wisconsin Alumni Research Foundation (WARF) as selection '916', 'Rebona' was derived from a crossing of Siberian Elm U. pumila with Japanese Elm U. davidiana var. japonica [1]. The tree was registered in 1993 by Conrad Appel KG, of Darmstadt (ceased trading 2006) and is a sibling of 'New Horizon' (selection '917'). In Europe, 'Rebona' is a 'Resista' elm [1] and therefore protected under E.U. breeders rights (E.U. council decision 2100/94).

Contents

Description

Unsurprisingly, '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

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

Cultivation

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

Accessions

Europe

Nurseries

Europe

References

  1. ^ Santamour, F. S., & Bentz, S. E. Updated checklist of elm (Ulmus) cultivars for use in North America. Journal of Arboriculture, 21(3): May, 1995.
  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 9709050112819