American Elm (Ulmus americana)

Common names:
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General Plant Information (Edit)
Plant Habit: Tree
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Minimum cold hardiness: Zone 2 -45.6 °C (-50 °F) to -42.8 °C (-45°F)
Maximum recommended zone: Zone 10a
Plant Height: 60 feet to 100 feet
Leaves: Deciduous
Flowers: Inconspicuous
Flower Color: Green
Other: Greenish-red
Bloom Size: Under 1"
Underground structures: Taproot
Suitable Locations: Street Tree
Uses: Shade Tree
Resistances: Humidity tolerant
Salt tolerant
Pollinators: Wind
Containers: Not suitable for containers

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Photo gallery:
Date: 2006-11-08clipart-fr
By admin
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Location: Villa Nova, PennsylvaniaDate: 2018-01-27full-grown specimen in winter
By ILPARW
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Location: Hinsdale, IllinoisDate: summer in late 1990'sfull-grown elms along street
By ILPARW
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Location: Chester County, PennsylvaniaDate: 2013-07-05two maturing elms at an estate made into a public park
By ILPARW
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Location: At the Oklahoma City National MemorialDate: 10-19-2019The Survivor Tree - Ulmus americana [American Elm] in OkC 001
By jathton
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By dave
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By dave
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By dave
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Location: Hinsdale, IllinoisDate: October in 1980'sfull-grown tree in autumn color
By ILPARW
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Location: Aurora, IllinoisDate: winter in mid-1980'sfull-grown tree in winter
By ILPARW
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Location: Kerr Park in Downingtown, PennsylvaniaDate: 2017-08-05looking up the trunk
By ILPARW
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Location: TarltonDate: 2018-05-27
By m33jones2
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By dave
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By dave
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Credit NPS
By admin
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Location: Ft Worth Botanic, TxDate: 2017-11-18
By jmorth
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Location: Fort Worth BotanicDate: 2017-11-18
By jmorth
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Location: Aurora, IllinoisDate: summer in early 1980'smature tree in park
By ILPARW
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Location: Glen Ellyn, IllinoisDate: 2017-09-06full-grown tree with some drastic pruning by utility co.
By ILPARW
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Location: Glen Ellyn, IllinoisDate: 2017-09-09huge lone tree
By ILPARW
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Location: Downingtown, PennsylvaniaDate: 2017-10-21mature tree in town
By ILPARW
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Location: Kerr Park in Downingtown, PennsylvaniaDate: 2017-08-05full-grown tree in park
By ILPARW
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Location: Kerr Park in Downingtown, PennsylvaniaDate: 2017-08-05a portion of trunk
By ILPARW
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Location: Kerr Park in Downingtown, PennsylvaniaDate: 2017-08-05summer foliage
By ILPARW
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Comments:
Posted by robertduval14 (Mason, New Hampshire - Zone 5b) on Apr 18, 2013 9:30 PM

The state tree of Massachusetts.


#bostonstrong

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Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Dec 4, 2017 7:17 PM

Of course the American or White Elm was devastated by the Dutch Elm Disease, even with some Elm Phloem Necrosis, both diseases from east Asia. However, I have seen a number of lone American Elm trees still surviving from the Chicago area to the Philadelphia area, including Delaware. Some of these trees might have survived by isolation, but I think most are the very few that had resistance to DED. Because this species has 2x as many chromosomes as other elms, it can't be hybridized, so some organizations have brought forth cultivars from resistant trees. The 'Princeton' Elm was already around in New Jersey as a cultivar that happened to be resistant already. A good number of larger, diverse nurseries are offering some American Elms as cultivars with 'Jefferson, New Harmony, Princeton, and Valley Forge' being the most commonly offered. I've seen a few spots in the borough in which I am dwelling in southeast Pennsylvania where some younger trees have been planted by landscape architects in parkways and some public spaces. I believe the Nature Conservancy is working on having resistant elms that are not cultivars, but seed grown.

The native range of the American Elm is large from Nova Scotia out to Alberta, down to east Texas to most of Florida and back up north. It grows fast of about 2 feet/year and lives 175 to 200 years or a little more. It usually gets good golden fall color, but some don't. It develops that wonderful vase shape. The leaves are 4 to 6 inches x 1 to 3 inches and are not really rough to the touch. It releases its many wafer-like samaras in spring, usually May. I consider it as the best elm species in the world. It is making a comeback, but should not be planted in such huge numbers as it used to be all along streets or in yards.

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Discussion Threads about this plant
Thread Title Last Reply Replies
THE SURVIVOR TREE at the OKLAHOMA CITY NATIONAL MEMORIAL by jathton Oct 20, 2019 8:50 AM 0
Mulberry tree? by MarineCory Nov 4, 2019 3:57 PM 5
Tree identification, possibly American Elm by Annfrances Nov 7, 2019 3:43 PM 11
Trees of unkown origin by MarineCory Nov 2, 2019 10:49 AM 6
What kind of tree is this? by CrazedHoosier May 24, 2019 4:42 PM 4
Tree ID please by mozart007 May 19, 2019 5:12 PM 4
What tree are these seeds from? by DogsNDaylilies Jun 4, 2018 6:19 AM 5
identify plant by superpninja May 11, 2018 12:29 AM 9
Tree ID? by tx_flower_child Dec 31, 2017 3:16 AM 17
Please ID tree/large shrub by Muddy1 Jun 10, 2017 5:34 PM 13
need to know about a plant by green25 May 29, 2017 9:31 AM 7

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