Hybrid Elm (Ulmus Accolade™)

Trade name information:
Trade Name: Accolade™
Cultivar name: 'Morton'
General Plant Information (Edit)
Plant Habit: Tree
Sun Requirements: Full Sun
Water Preferences: Wet Mesic
Mesic
Dry Mesic
Soil pH Preferences: Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Plant Height: 40 to 60 feet
Plant Spread: 30 to 50 feet
Leaves: Deciduous
Flowers: Inconspicuous
Suitable Locations: Street Tree
Uses: Shade Tree
Resistances: Deer Resistant
Rabbit Resistant
Pollution
Drought tolerant
Salt tolerant
Propagation: Other methods: Cuttings: Stem
Pollinators: Wind
Miscellaneous: Tolerates poor soil
Monoecious
Parentage: Ulmus davidiana var. japonica x Ulmus davidiana

trunk and bark

Photo gallery:
Location: Morton Arboretum in Lisle, IllinoisDate: 2010-08-19trunk and bark
By ILPARW
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Location: Morton Arboretum in Lisle, IllinoisDate: 2010-08-19the large, original mother tree
By ILPARW
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Location: Morton Arboretum in Lisle, IllinoisDate: 2010-08-19maturing tree in front of Thornhill Bldg
By ILPARW
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Location: Morton Arboretum in Lisle, IllinoisDate: 2015-06-19mature tree at administration bldg
By ILPARW
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Location: Morton Arboretum in Lisle, IllinoisDate: 2010-08-19leaaves of tree in front of Thornhill Bldg
By ILPARW
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Location: Hinsdale, IllinoisDate: October circa 1990mature tree planted in parkway
By ILPARW
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Comments:
Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Oct 7, 2018 8:04 PM

This cultivar developed at Morton Arboretum by a certain Dr Ware was first called 'Morton' but the name in the trade was made to be really 'Accolade'. It was first classified as a cross between the Japanese Elm (Ulmus japonica) x the Wilson Elm (Ulmus wilsoniana) from China. Later on, the botanists decided that it was really one species being the David Elm (Ulmus davidiana) with two different natural varieties crossed of one from Japan and the other from China. Like many elms it is fast growing of 2 to 3 feet/year. I have not seen it develop a good fall color. I have seen it planted in street parkways and in parking lot islands in the Chicago, IL area and in southeast Pennsylvania. The local Home Depot has a good number of this elm planted around it. Of course, it is strongly resistant to Dutch Elm Disease as most east Asian Elms.

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Discussion Threads about this plant
Thread Title Last Reply Replies
Interesting plant by Junker1004 May 20, 2016 1:20 PM 280
Thinking on the names issues - synonyms, cultivar names, trade names, etc by dave Jul 16, 2012 3:59 PM 76

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