Ulmus 'Hillieri'

Description

'Hillieri' is a graceful, compact, slow-growing miniature tree rarely 1.2 m in height,The 2002 edition of The Hillier Manual of Trees and Shrubs misprints as "usually less than 12 m high" (p.369). widely branched and bearing weeping branches.{{cite book |last1=Krüssmann |first1=Gerd |title=Manual of cultivated broad-leaved trees & shrubs |date=1986 |volume=3 File:BH00056 Ulmus. Stanmer Park Arboretum, Brighton. (6).jpg|'Hillieri' in Stanmer Park Arboretum, spring File:BH00056 Ulmus. Stanmer Park Arboretum, Brighton. (3).jpg|Fruit of same

Pests and diseases

The degree of the tree's susceptibility to Dutch elm disease (DED) is unknown. It has been noted that shrub-elms are usually less prone to infection.

Cultivation

A specimen stood in the Arboretum national des Barres, Nogent-sur-Vernisson, France, in the 1930s. 'Hillier' was introduced to the US in 1954 as Ulmus hillieri. An old low shrub-elm in Stanmer Park Arboretum, Brighton (2018, now storm-damaged), planted in the winter of 1965-6, with level rather than pendulous branching and leaves closely matching 'Hillieri' herbarium specimens in Kew Herbarium and the Arboretum national des Barres, was said (2018) by Hillier Nurseries, who supplied many elms to the arboretum, to be 'Hillieri', though it is about 4 m tall and lacks crimson autumn colour. Dutch authorities who examined the tree in 2010 conjectured Japanese Elm hybrid.

A tree cultivated in Denmark as Ulmus × hollandica 'Hillieri' or Dukke-elm (:Doll's elm) appears from photographs to be U. 'Jacqueline Hillier'. A tree in the Arboretum Volčji Potok, Slovenia, labelled Ulmus × hollandica 'Hillieri', has leaves much smaller than those of 'Hillieri', and may be a form of dwarf Ulmus parvifolia.

Synonymy

• Ulmus hillieri Hort.: Hillier & Sons, Winchester, England. Cat. 38T, p. 52, 1928.

Notes

References

References

1. Hillier & Sons, Cat. 38T, p.52, 1928 (Winchester)
2. Green, Peter Shaw. (1964). "Registration of cultivar names in Ulmus". [[Arnold Arboretum]], [[Harvard University]].
3. (1944). "La maladie des ormeaux". Bulletin de la Murithienne.
4. (1940). "Correspondence". Gardeners' Chronicle.
5. [http://www.dendrology.lu/wp-content/uploads/2018/05/GMJ_Weeping_cultivars-1.pdf#page=6 Rafaël Govaerts, Kris Michielsen and Eike Jablonski, 'Untraced weeping broadleaf cultivars: an overview', dendrology.lu]
6. {{Naturalis Biodiversity Center
7. Plant Inventory No. 162. [https://www.ars-grin.gov/npgs/pi_books/scans/pi162.pdf#page=79 213985]
8. [https://www.brighton-hove.gov.uk/news/2025/rare-elms-spotlight-sussex-tree-festival 'Rare elms in the spotlight for Sussex Tree Festival', 11 June 2025]
9. [https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:856868-1/images Kew Plants of the World Online: ' ''Ulmus × hollandica'' Mill. Images'; Kew herbarium specimen of ''Ulmus'' × ''hollandica'' Mill. cv. 'Hillieri': Image 4 of 52; ID:1128161; powo.science.kew.org]
10. Correspondence from Hillier Nurseries Limited, October 2018.
11. Correspondence from Holland, October 2018.
12. Lønbæk Planteskole, [[Holstebro]], [[Denmark]]; loenbaek.dk [http://loenbaek.dk/planter/ulmus-x-hollandica-hillieri.html]
13. [http://arboretum.si/~arboretu/herbarij/ULMUS%20X%20HOLLANDICA%20%27HILLIER%27.htm Arboretum Volčji Potok, tree photo]
14. [http://arboretum.si/~arboretu/herbarij/Ulmus%20x%20hollandica%20%27Hillier%27%20-%20vejica.htm Arboretum Volčji Potok, leaves photo]