When does American Elm bloom?

American Elm flowers appear in early spring, typically from March through May, opening before the leaves emerge.

What insects use American Elm as a host plant?

American Elm serves as a larval host for a number of butterflies and moths, so leaving mature trees in place supports local caterpillar populations.

What growing conditions does American Elm prefer?

This tree does best with full sun to part shade and moderate soil moisture, though it tolerates both seasonally wet floodplain soils and drier upland ground once established.

How big does American Elm get?

American Elm is a large shade tree that can reach 60 to 80 feet tall, often developing the classic wide, vase-shaped canopy the species is known for.

Is American Elm toxic to livestock?

The USDA PLANTS Database does not flag American Elm as toxic to livestock.

Is American Elm HOA-friendly?

American Elm takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

American Elm

Name: Pollinator Patch
Author: Pollinator Patch

Ulmus americana

Last reviewed: September 2026

American Elm is a fast-growing deciduous shade tree with a vase-shaped crown and small green flowers in March, April, and May. It grows well in full sun to part shade and handles both moist bottomland soils and drier upland sites.

Toxicity unknown

American Elm (Ulmus americana) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag American Elm as toxic to livestock.

Light

full sun

Water

medium

Size

864"–1200" H × 480"–840" W

Bloom

Mar, Apr, May

Native to

AL, AR, CT, DE and 35 more states

Pollinators

butterflies, moths

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Browse plants for this ecoregion

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American Elm is a large, stately shade tree that can reach 60-100 feet tall with a graceful, vase-shaped canopy. This native Texas tree provides excellent shade and has a classic, formal appearance that works well in larger landscapes. It blooms with small flowers in early spring before the leaves emerge.

Growing American Elm

Grow American Elm in full sun and medium water. Mature plants reach 864 to 1200 inches tall and spread 480 to 840 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

American Elm takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Tree size exceeds typical HOA-friendly range
Best suited for backyard or with special approval

Wildlife value

The tree supports butterflies and moths, and its seeds provide food for birds. As a large native tree, it offers nesting sites and shelter for various wildlife species.

Common questions

When does American Elm bloom?: American Elm flowers appear in early spring, typically from March through May, opening before the leaves emerge.
What insects use American Elm as a host plant?: American Elm serves as a larval host for a number of butterflies and moths, so leaving mature trees in place supports local caterpillar populations.
What growing conditions does American Elm prefer?: This tree does best with full sun to part shade and moderate soil moisture, though it tolerates both seasonally wet floodplain soils and drier upland ground once established.
How big does American Elm get?: American Elm is a large shade tree that can reach 60 to 80 feet tall, often developing the classic wide, vase-shaped canopy the species is known for.
Is American Elm toxic to livestock?: The USDA PLANTS Database does not flag American Elm as toxic to livestock.
Is American Elm HOA-friendly?: American Elm takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow American Elm? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Add this plant to your garden

iPhone app Android app

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz

American Elm

Ulmus americana

Last reviewed: September 2026

Toxicity unknown

The USDA PLANTS Database (opens in new tab) does not flag American Elm as toxic to livestock.

Light

full sun

Water

medium

Size

864"–1200" H × 480"–840" W

Bloom

Mar, Apr, May

Native to

AL, AR, CT, DE and 35 more states

Pollinators

butterflies, moths

Before you buy

Your city may pay you to plant this

Find rebates in your area

Browse plants for this ecoregion

Growing American Elm

Grow American Elm in full sun and medium water. Mature plants reach 864 to 1200 inches tall and spread 480 to 840 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

American Elm takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Tree size exceeds typical HOA-friendly range
Best suited for backyard or with special approval

Wildlife value

The tree supports butterflies and moths, and its seeds provide food for birds. As a large native tree, it offers nesting sites and shelter for various wildlife species.

Common questions

When does American Elm bloom?: American Elm flowers appear in early spring, typically from March through May, opening before the leaves emerge.
What insects use American Elm as a host plant?: American Elm serves as a larval host for a number of butterflies and moths, so leaving mature trees in place supports local caterpillar populations.
What growing conditions does American Elm prefer?: This tree does best with full sun to part shade and moderate soil moisture, though it tolerates both seasonally wet floodplain soils and drier upland ground once established.
How big does American Elm get?: American Elm is a large shade tree that can reach 60 to 80 feet tall, often developing the classic wide, vase-shaped canopy the species is known for.
Is American Elm toxic to livestock?: The USDA PLANTS Database does not flag American Elm as toxic to livestock.
Is American Elm HOA-friendly?: American Elm takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

If something looks wrong

Common plant problems, and what to check first

See all plant problem guides

Ready to grow American Elm? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Add this plant to your garden

iPhone app Android app

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz