Ulmus davidiana var Japonica 'Morton' [sold as Accolade®]
Accolade Elm

Ulmus × ′Morton′ [sold as Accolade®] - Summer Habit
 Family:
 Genus:
 Plant Type:
 Growth Forms:
 Hardiness:
 Deciduous / Evergreen:
 Flower Notes:
Green (Not ornamentally important)
 Foliage Notes:
Green (Lustrous dark green summer foliage); Yellow (Handsome golden yellow fall foliage)
 Fruit Notes:
Brown (Wafer-like samaras; not ornamentally important)
 Ultimate Height:
50-70 feet
 Ultimate Spread:
40-50 feet
 Fruiting Times:
 Light Requirements:
 Soil Notes:
Prefers moist soils, pH tolerant, soil salt tolerant
 Range:
Hybrid origin
 Diagnostic Characteristics:
Glossy dark leaves are 1.5-4" long by 1-2" wide (smaller than Ulmus americana), simple, alternate, unequal at base (oblique), doubly serrate with 12 parallel veins from mid-vein to the teeth. Veins pubescent on the underside of the leaf. The petiole is usually pubescent. Buds have soft silky pubescence.
  Special Characteristics:
  • Fast Growth Rate 225
  • Pest and/or Disease Resistant 96
  • Salt Tolerant 60
  • Shade Tree 176
  • Specimen 612
  • Street Tree 138

    • Additional Information

    Very good resistance to the Dutch elm disease pathogen, Ophiostoma ulmi, which has led to the near extinction of the American Elm (Ulmus americana) in the U.S. Also has good resistance against phloem necrosis, elm leaf beetle, and leaf miner.

    When Ulmus davidiana var Japonica 'Morton' [sold as Accolade®] has been observed flowering or fruiting at Purdue University

    No Flowering Observations Available

    Fruiting

    JanFebMarAprMayJunJulAugSepOctNovDec

    25 Ulmus davidiana var Japonica 'Morton' [sold as Accolade®] found

    = Heritage plant = Memorial plant
    Number Accession ID Location
    1ORIG_8340*AWOOD
    2ORIG_8737*AMRGN
    3ORIG_9437*APAO
    4ORIG_6225*APFSB
    5ORIG_9431*APAO
    6ORIG_9423*ASPKL
    7ORIG_7556*AORIG
    8ORIG_9603*AFORD
    9ORIG_7554*AORIG
    10ORIG_9422*ASPKL
    11ORIG_7944*APFSB
    12ORIG_8735*AMRGN
    13ORIG_9602*AFORD
    14ORIG_7567*AORIG
    15ORIG_8350*AWDCT
    16ORIG_8349*AWDCT
    17ORIG_8342*AWOOD
    18ORIG_6228*APFSB
    19ORIG_8341*AWOOD
    20ORIG_9434*APAO
    21ORIG_9441*APAO
    22ORIG_8486*AMEMMALL
    Heritage Plant
    Dedicated/Memorial Plant
    23ORIG_7945*APFSB
    24ORIG_8736*AMRGN
    25ORIG_9428*APAO

    Other plants like this Ulmus davidiana var Japonica 'Morton' [sold as Accolade®] (Accolade Elm)

    Communication

    University Resources

    Sustainability Resources

    Arboretum Resources

    Purdue University Logo Purdue University Logo

    The Purdue Arboretum is a collaboration between the Department of Horticulture and Landscape Architecture and Physical Facilities Grounds Department

    Purdue Arboretum, 625 Agriculture Mall Dr, West Lafayette, IN, 47907
    © 2025 Purdue University | An equal access/equal opportunity university | Integrity Statement | Copyright Complaints | Maintained by the Purdue Arboretum
    Contact Purdue Arboretum at arboretum@purdue.edu for accessibility issues with this page | Accessibility Resources | Contact Us