Ulmus 'Rebona'
# Ulmus 'Rebona'

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. 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 protected under E U breeders' rights (E U council decision 2100/94).

## Description

'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'.

## Pests and diseases

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

## Cultivation

'Rebona' has been widely planted as a street tree in Germany, the Netherlands, and to a lesser extent in France and the UK.

## Synonymy

* 'Rebone'

## Accessions

### Europe

* Botanischer Garten Marburg , Marburg, Germany. No details available.
* Grange Farm Arboretum, Lincolnshire, UK. Acc. no. not known.
* Royal Botanic Gardens, Kew, UK. Acc. no. not known.
* Sir Harold Hillier Gardens, Romsey, UK. One tree planted Crookhill overflow parking area. Acc. no. 2018.0019
* Wijdemeren City Council, Netherlands. Elm Collection, first planted 2005 De Vijnen, Nederhorst den Berg. Used in elm trials Ankeveen 2009.

## Nurseries

### Europe

* Baumschule Grossbötzl Ort, Austria.
* Björkhaga Plantskola Veberöd, Sweden.
* Clasen & Co Rellingen, Germany.
* Eisele GmbH, , Darmstadt, Germany.
* Hilliers Nurseries , Liss, UK.
* Noordplant , Glimmen, Netherlands.
* Pépinières Rouy-Imbert Monfavet-Avignon, France.
