2019 Yellowstone Arboretum Accessions
MATURE
Frontier Elm
A# 2019-033 WW29
GPS W/A
Latin name: Ulmus carpinifolia x parvifolia
Family name: Ulmus
Common name: Frontier Elm
Origin: U.S. National Arboretum introduction
Location: Waterways Garden-opposite Wolf habitat-north
Number in accession: 1
Assigned: WW29
Status: Container
Source: Rocky Mountain Tree School
Botanical name: Ulmus 'Frontier'
All common names: Frontier elm
Family (English): Elm
Family (Botanic): Ulmaceae
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Planting Site: Residential and parks, City parkway, Wide median, Restricted sites
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Tree or Plant Type: Tree
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Foliage: Deciduous (seasonally loses leaves)
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Native Locale: Non-native
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Landscape Uses: Parkway/street, Shade tree, Specimen
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Size Range: Large tree (more than 40 feet), medium tree (25-40 feet)
Mature Height: 30-40 feet
Mature Width: 20-30 feet
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Light Exposure: Full sun (6 hrs direct light daily)
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Hardiness Zones: Zone 4, Zone 5, Zone 6, Zone 7
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Soil Preference: Moist, well-drained soil
The Frontier elm has good resistance to Dutch elm disease (DED) and elm yellows and moderate resistance to elm leaf beetle. This hardy, tolerant tree is a good choice for residential landscapes and along city streets.