American elm

Appalachian-Blue Ridge forests

Arizona Mountains forests

Atlantic coastal pine barrens

Blue Mountains forests

Central Pacific Northwest coastal forests

Central Tallgrass prairie

Central-Southern Cascades Forests

What it needs

Conditions

Light

Full sun / Part shade

Water

Moderate water

Spacing

40 ft

Habit

Large vase-shaped deciduous shade tree with high-arching spreading limbs

Care tips

•

Be honest about Dutch elm disease: do not plant the unselected wild species expecting it to survive - plant a DED-tolerant cultivar ('Princeton', 'Valley Forge', 'New Harmony', or 'Jefferson') bred and selected for resistance.

•

Give it real room and the conditions it likes - full sun to part shade, plenty of overhead and root space for a 60-80 foot vase-shaped tree, and don't shy from wet or poorly drained ground, which it tolerates better than most large trees.

•

Prune only in dormancy: fresh growing-season cuts attract the elm bark beetles that spread DED, so save shaping for late winter and train early to a strong single leader for a clean vase form.

Lifecycle

Planting

Plant in spring or fall in full sun to part shade in moist, fertile soil; American elm is unusually forgiving of wet, poorly drained ground and tough urban conditions, and is extremely cold-hardy to USDA zone 3. Give it serious room - figure on a 60-80 foot tree with a 30-60 foot spreading crown, not a small-yard specimen. Be clear-eyed about Dutch elm disease: do not plant the unselected wild species expecting it to live, and instead source a DED-tolerant cultivar ('Princeton', 'Valley Forge', 'New Harmony', or 'Jefferson') bred for resistance.

Transplanting

Transplants readily for a large tree, balled-and-burlapped or from containers; move while dormant in late winter to early spring, set at the original depth, and water deeply through the first seasons. Its shallow, wide-spreading root system establishes quickly but can lift pavement, so keep it back from walks and curbs.

Early growth

Growth is fast. Water through the first 2-3 seasons, mulch off the trunk, and train to a single central leader so the vase form develops cleanly. Avoid pruning in the growing season, when fresh cuts attract the elm bark beetles that spread Dutch elm disease - prune in dormancy instead - and watch for sudden wilting and yellowing of leaves on a branch (flagging), the first sign of DED.

Maturity

Matures into a large 60-80 foot shade tree with the iconic high-arching vase canopy that once roofed American streets. On unselected wild elms that outcome is now rare - Dutch elm disease killed the vast majority of mature trees - so it is realistic only with DED-tolerant cultivars, which still benefit from monitoring and prompt removal of any diseased wood.

Propagation

DED-tolerant cultivars are propagated clonally - by cuttings, grafting, or tissue culture - to keep their proven resistance, which is the whole point of planting a named selection. The wild species comes readily from the abundant spring samaras, which germinate quickly if sown fresh, but seedlings carry no reliable disease resistance.

Pollination

Wind-pollinated

Perfect (bisexual) flowers open in very early spring, before the leaves, and are wind-pollinated - small and petal-less, with no need to attract insects - so a single tree sets its papery samaras on its own. The wind carries the pollen that matters; bees may visit the early flowers for the trace of pollen, but they play no real role in seed set.

Plants don't grow alone

Larval host

Butterfly

Eastern comma (Polygonia comma)

American elm is a documented larval host for the eastern comma butterfly; its caterpillars feed on the foliage, making even a single elm a real breeding resource for the species across the eastern range.

Larval host

Butterfly

Question mark butterfly (Polygonia interrogationis)

American elm is listed among the question mark butterfly larval hosts; DED-tolerant elm plantings can therefore support this woodland anglewing as well as eastern comma and mourning cloak.

Larval host

Butterfly

Mourning cloak (Nymphalis antiopa)

Elms are a well-established larval host for the mourning cloak butterfly, whose communal caterpillars feed on the leaves; the long-lived adults are among the earliest butterflies seen in spring.

Seed forage

Bird

Eastern songbirds (multi-species) (multiple species (Passeriformes))

The abundant flat, papery samaras ripen and fall in early-to-mid spring, an unusually early seed crop that finches and other small songbirds pick at; graded plausible because the foraging is opportunistic rather than a dedicated specialist tie.

Seed forage

Bird

American goldfinch (Spinus tristis)

American goldfinches eat the soft, early-spring elm samaras when little other seed is available; the tie is real but opportunistic, so it is graded plausible rather than documented.

For people

Not eaten by humans

Grown as a shade and street tree, not for food - the seeds, leaves, and bark are not eaten. Its real value is the canopy and, historically, its strong, hard-to-split timber. The species' legacy is shaped less by use than by loss: Dutch elm disease erased it from the streetscapes it once defined, which is why a new planting should be a DED-tolerant cultivar.

Similar plants

Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.

Thuja occidentalis

American arborvitae

A dense, conical-to-narrow-pyramidal evergreen tree native to eastern and central North America, prized as a screening and foundation conifer. Flat, fan-like sprays of scale-like, aromatic yellow-green foliage clothe the tree from the ground up, and red-brown bark exfoliates on mature trunks. Wild trees can reach 40 to 60 feet but cultivated plants typically stay near 20 to 30 feet; small urn-shaped cones and dense evergreen cover make it valuable food and shelter for birds.

A medium-to-large native shade tree of central and eastern North America, reaching 50 to 80 feet with an ovate-rounded crown and large, asymmetric heart-shaped leaves. In June it carries pale-yellow, intensely fragrant flowers on pendulous cymes - each cluster hung from a distinctive strap-like leafy bract - that ripen into pea-sized nutlets. The fragrant June bloom is a premier nectar source: Missouri Botanical Garden lists it as attracting bees and butterflies, and the Lady Bird Johnson Wildflower Center flags it as having special value to both native and honey bees.

Once the dominant canopy hardwood of the eastern United States forest - an estimated four billion trees, prized for fast growth, rot-resistant timber, and an enormous annual crop of sweet edible nuts that fed people, livestock, and wildlife alike. In the early 1900s an introduced Asian fungus, chestnut blight (Cryphonectria parasitica), swept through and functionally destroyed it: by the 1950s the species was effectively extinct as a mature forest tree. Surviving root systems still send up sprouts from old stumps, but the blight almost always girdles and kills them before they can grow large enough to flower and reproduce. The honest reality for a gardener is that you cannot reliably grow a mature wild-type American chestnut today. The realistic paths are blight-resistant backcross hybrids from The American Chestnut Foundation or transgenic blight-tolerant lines still being deployed - not a pure wild seedling, which the blight will almost certainly kill.

The only native U.S. holly with both spiny green leaves and bright red berries - an upright, pyramidal, broadleaf evergreen tree that slowly matures to 15 to 30 feet in cultivation (to 50 feet in the wild). Thick, leathery, deep green leaves bear spiny marginal teeth, and pollinated female trees carry showy red-to-orange drupes that ripen in fall and persist through winter as bird food. This is the classic "Christmas holly" of wreaths and decorations.

Full sun / Part shade

A small-to-medium understory tree of dry, rocky eastern-North-American woods, named for its drooping clusters of papery, sac-like seed pods that resemble the fruit of hops. The birch-like, sharply-serrated leaves turn an undistinguished yellow in fall, and reddish-brown male catkins persist on the bare branches through winter. Also called ironwood for its extremely hard, dense wood; tough, low-maintenance, and drought-tolerant once established.

A tough, medium-sized native tree of the eastern and midwestern United States, grown as much for its showy edible orange fruit as for its distinctive thick, dark gray bark broken into rectangular blocks. Small urn-shaped white-to-greenish-yellow flowers open in May and June, and the sweet fruit ripens after frost. Largely dioecious - a female tree needs a male pollinizer nearby to set fruit - and notably drought- and walnut-tolerant once established.

Full sun / Part shade

Educator packet

Plant packet

American elm educator packet

The American elm is the great vase-shaped shade tree that once arched over Main Streets and town commons across eastern North America - a fast, extremely cold-hardy deciduous tree of 60 to 80 feet whose upright trunk divides into a fountain of high, spreading limbs that meet overhead to form a living cathedral ceiling. That iconic form, and the species' tolerance of wet soil and tough urban conditions, made it the default American street tree for a century. Then Dutch elm disease (DED) - an introduced fungal disease carried by elm bark beetles - swept through in the 20th century and killed the vast majority of mature street and shade elms across the continent. The honest reality for a gardener today is blunt: do not plant the unselected wild species expecting it to survive. If you want the American-elm form, plant a DED-tolerant cultivar bred and selected for resistance - 'Princeton', 'Valley Forge', 'New Harmony', or 'Jefferson' - and say so plainly. Where it does grow, it is fast, hardy to USDA zone 3, and remarkably forgiving of wet ground and city stress.

Scientific name

Ulmus americana

Plant type

tree

Hardiness

3a-9b

Light

full-sun, part-shade

Moisture

moderate

Spacing

480 inches

Classroom prompts

- Which plant traits are observations, and which are care recommendations?

- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?

- Which source-backed facts would you cite in a lesson handout?

Use the Sources & citations section below for page citation styles and the field-level source list.

Sources & citations

Cite this page

For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.

Plotwright. (2026, May 17). American elm (Ulmus americana). Retrieved 2026, August 20, from https://plotwright.com/plants/ulmus-americana

Sources used for this record

This record is compiled from the sources below.

NC State Extension Gardener Plant Toolbox

University extension service

GBIF

Botanical research database

Wikipedia (ecoregion articles)

Botanical research database

Wikimedia Commons

Photo · CC BY-SA 3.0