| Ulmus 'Stavast' | |
|---|---|
| Genus | Ulmus |
| Hybrid parentage | 'Commelin' × '202' (U. 'Exoniensis' ×U. wallichiana) |
| Cultivar | 'Stavast' |
| Origin | Netherlands |
Ulmus 'Stavast' is a Dutchhybridelmcultivar raised at the Dorschkamp Research Institute for Forestry & Landscape Planning,Wageningen, as clone '622' from the crossing of'Commelin' with clone '202',[1][2] itself a hybrid of theExeter ElmUlmus 'Exoniensis' andHimalayan ElmUlmus wallichiana.
The tree is distinguished by its dense root system.[3][4]
'Stavast' has only a moderate resistance toDutch elm disease, rated 3 out of 5.[5]
'Stavast' has not been in commerce in its own right much. It was retained as a rootstock for the grafting of related elms like'Dodoens','Plantyn', and'Clusius' (cultivars now propagated by rooted cuttings[6][3]), as its dense root-system quickly stabilized young trees.[7]Specimens of the cultivar have been planted in the Netherlands, in the elm trial plantation at Lepelaarweg,Zeewolde,[8][4] in the Het Egeltjesbos public park in the village of De Kwakel,Uithoorn (one tree),[citation needed] and among the lines of elms on the ‘s-Gravelandsevaartweg,Loosdrecht (10 trees, planted 2018), part ofWijdemeren City Council's elm collection, assembled since 2003 by tree manager Martin Tijdgat and his colleagues.[9][10][11]
A number of 'Stavast' were exported to New Zealand for use in trials at the Hortresearch station atPalmerston North in the 1990s.[citation needed]
The name 'Stavast' is Dutch for "stand firmly", but is also used to describe someone of resolute character.