Ulmus parvifolia 'Frosty' - Misplaced Pages

Elm cultivar

Ulmus parvifolia 'Frosty'
'Frosty' leaves.
Species	Ulmus parvifolia
Cultivar	'Frosty'
Origin	Japan

The Chinese Elm cultivar Ulmus parvifolia 'Frosty', or 'Frosty' lacebark elm, was intended primarily as a dwarf variegated variety. Krüssmann (1976) states that it was raised in Japan.

Description

The tree is distinguished by its small leaves, which rarely exceed 18 mm in length and feature at first irregular white-flecked margins, "finally white only on the teeth". The foliage emerges creamy-yellow in spring, some leaves remaining pale later into the year. The canopy turns rich yellow in the fall. Descriptions of the cultivar's vigour and ultimate height vary from "a slow-growing shrub attaining no more than 8 ft (2.5 m)", to "growing at a fast rate, to about 20 ft tall at maturity, with a spread of 15 ft".

Pests and diseases

The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.

Cultivation

'Frosty' is relatively common in cultivation on both sides of the Atlantic. In 2008 it was described as "uncommon" in Victoria, Australia. Spencer (1995) reported it first listed in Australia around 1982 but present earlier (see Notable Trees).

Putative specimen

A 55 ft U. parvifolia (2019), with little variegation, in the J.C. Raulston Arboretum, North Carolina, has been labelled 'Frosty'.

J.C. Raulston Arboretum U. parvifolia
Foliage of same

Notable trees

Spencer (1995) reported a large specimen reverting to green, at the back entrance of Beechworth Mental Hospital, Beechworth, Victoria, Australia.

Accessions

North America

Dawes Arboretum , Newark, Ohio, US. 1 tree, no acc. details available.
Denver Botanic Gardens, US. No details available
Holden Arboretum, US. Acc. no. 85-176
Smith College, US. Acc. no. 23703

Europe

Clapton Court, Somerset, UK. TROBI Champion, 7 m high, d.b.h. 14 cm in 2006
Royal Horticultural Society Gardens, Wisley, UK. No details available
Sir Harold Hillier Gardens, UK. Acc. no. 1982.0008

Australia

Glenormiston College, Glenormiston Road, Glenormiston South, Victoria 3265; 2 trees, 4 m in height (2008)

Nurseries

North America

Widely available.

Europe

Widely available.

Australasia

Yamina Rare Plants , Monbulk, Melbourne, Australia.

References

Krüssmann, Johann Gerd, Handbuch der Laubgehölze (Vol. 3) (Paul Parey, Berlin and Hamburg, 1976); trans. Michael E. Epp, Manual of Cultivated Broad-Leaved Trees and Shrubs (Vol. 3) (Batsford, Timber Press, Beaverton, Oregon, 1984-6), p.411
William Jackson Bean, Trees and shrubs hardy in Great Britain, 8th edition (London, 1980)
U. parvifolia, treesandshrubsonline.org
U. parvifolia 'Frosty', Silvan, Victoria; jftnurseries.com.au
^ U. parvifolia 'Frosty', landscapeplants.oregonstate.edu
^ 'Frosty' elm, U. parvifolia 'Frosty', plants.westonnurseries.com/12130019/Plant/8266
"Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.
^ U. parvifolia 'Frosty' in Glenormiston College, Victoria, trusttrees.org.au
^ Spencer, Roger, ed., Horticultural Flora of South-Eastern Australia, Vol. 2 (Sydney, 1995), Ulmus, p.115
jcra.ncsu.edu Variegated Chinese elm, U. parvifolia 'Frosty', J.C. Raulston Arboretum
U. parvifolia 'Frosty' in Glenormiston College, Victoria; vhd.heritagecouncil.vic.gov.au

Elm species, varieties, hybrids, hybrid cultivars and species cultivars

Species, varieties and subspecies

Disputed species, varieties and subspecies

Hybrids

Species cultivars

American elm	American Liberty Ascendens Augustine Aurea Beaverlodge Beebe's Weeping Brandon Burgoyne JFS Prince II College Columnaris Creole Queen Deadfree Delaware Exhibition Fiorei Flick's Spreader Folia Aurea Variegata Great Plains Hines Incisa Independence Iowa State Jackson Jefferson Kimley Klehmii L'Assomption Lake City Lewis & Clark Littleford Maine Markham Miller Park Minneapolis Park Moline Morden New Harmony Nigricans Patmore Pendula Penn Treaty Princeton Pyramidata Queen City Sheyenne Skinner Upright St. Croix Star Valley Forge Variegata Vase Washington
Cedar elm	Brazos Rim
Chinese elm	A-1 A. Ross Central Park Blizzard BSNUPF Burgundy Burnley Select Catlin Chessins Churchyard Cork Bark D. B. Cole Drake Dynasty Ed Wood Elsmo Emer I Emer II Emerald Prairie Frosty Garden City Clone Geisha Glory Golden Rey Hallelujah Hokkaido Jade Empress King's Choice Littleleaf Lois Hole Matthew Milliken Nire-keyaki Ohio Orange Ribbon Pathfinder Pendens Prairie Shade Prince Richard Red Fall Sabamiki Sagei Seiju Select 380 Sempervirens Small Frye State Fair Stone's Dwarf Taiwan The Thinker Todd True Green UPMTF Ware's Yarralumla Yatsubusa Zettler Ulmus parvifolia f. lanceolata
European white elm	Aureovariegata Colorans Helena Ornata Pendula Punctata Urticifolia
Field elm	Ademuz Albo-Dentata Amplifolia Argenteo-Variegata Atinia Atinia Pyramidalis Atinia Variegata Bea Schwarz Biltii Christine Buisman Concavaefolia Coritana Cretensis Cucullata Cucullata Variegata Dehesa de Amaniel Dehesa de la Villa Dicksonii Dijkwel Erecta Folia Alba-Punctata Glandulosa Goodyeri Hoersholmiensis Holmstruph Hunnybunii Hunnybunii pseudo-Stricta Laciniata Lanuginosa Majadahonda Microphylla Pendula Microphylla Purpurea Microphylla Rubra Monumentalis Pendula Picturata Plotii Propendens Punctata Purpurascens Purpurea Retiro Reverti Rugosa Rueppellii Sarniensis Schuurhoek Silvery Gem Sowerbyi Stricta Suberosa Umbraculifera Gracilis Umbraculifera Viminalis Viminalis Aurea Viminalis Betulaefolia Viminalis Gracilis Viminalis Incisa Viminalis Marginata Viminalis Pendula Viminalis Pulverulenta Viminalis Stricta Virgata Webbiana
Japanese elm	Discovery Freedom Jacan JFS-Bieberich Mitsui Centennial Prospector Reperta Reseda Thomson Validation
Siberian elm	Ansaloni Aurea Aurescens Chinkota Dropmore Dwarf Weeper Green King Hansen Harbin Manchu Mauro Mr. Buzz Park Royal Pendula Pinnato-ramosa Poort Bulten Puszta Pyramidalis Fiorei Zhonghua Jinye
Winged elm	Lace Parasol
Wych elm	Albo-Variegata Australis Camperdownii Cebennensis Concavaefolia Cornuta Corylifolia Purpurea Corylifolia Fastigiata Macrophylla Fastigiata Stricta Fastigiata Variegata Firma Flava Gigantea Gittisham Grandidentata Holgeri Horizontalis Insularis Latifolia Latifolia Aurea Latifolia Aureo-Variegata Latifolia Nigricans Luteo Variegata Lutescens Macrophylla Maculata Minor Nana Nigra Nitida Oblongata Pendula Macrophylla Pendula Variegata Pyrenaica Spectabilis Superba Tomentosa

Hybrid cultivars

Androssowii Amsterdam Arno Cathedral Clusius Columella Den Haag Dodoens Escaillard Fiorente Frontier Fuente Umbria Homestead Karagatch Lobel Morfeo Morton Morton Glossy Morton Plainsman Morton Red Tip Morton Stalwart Nanguen New Horizon Patriot Plantyn Plinio Rebella Rebona Recerta Regal Repura Revera San Zanobi Sapporo Autumn Gold Sapporo Gold 2 Stavast Toledo Urban Wanoux Wingham
Dutch elm	Alba Angustifolia Balder Belgica Blandford Canadian Giant Cicestria Cinerea Commelin Dampieri Dauvessei Daveyi Dovaei Dumont Elegantissima Eleganto-Variegata Etrusca Fastigiata Fjerrestad Folia Rhomboidea Freja Fulva Gaujardii Groeneveld Haarlemensis Klemmer Loke Macrophylla Aurea Major Microphylla Modiolina Muscaviensis Odin Pioneer Pitteurs Serpentina Smithii Superba Tricolor Tyr Vegeta Viminalis Viscosa Wentworthii Pendula Wredei Ypreau
U. × intermedia	Coolshade Fremont Improved Coolshade Lincoln Rosehill Willis

Unconfirmed derivation cultivars

Fossil elms

U. okanaganensis

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