Ulmus Species, Cedar Elm, Fall Elm, Olmo, Scrub Elm, Southern Rock Elm, Texas Cedar Elm

Ulmus crassifolia

Family: Ulmaceae (ulm-AY-see-ee) (Info)
Genus: Ulmus (ULM-us) (Info)
Species: crassifolia (krass-ih-FOH-lee-uh) (Info)
Synonym:Ulmus monterreyensis
Synonym:Ulmus opaca



Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun

Sun to Partial Shade


Grown for foliage



Foliage Color:

Unknown - Tell us


30-40 ft. (9-12 m)

over 40 ft. (12 m)


15-20 ft. (4.7-6 m)


USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Where to Grow:

Unknown - Tell us


Pollen may cause allergic reaction

Bloom Color:

Fuchsia (red-purple)


Pale Green


Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

Bloom Time:

Late Summer/Early Fall

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

8.6 to 9.0 (strongly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

From herbaceous stem cuttings

From softwood cuttings

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

From seed; sow indoors before last frost

From seed; direct sow after last frost

By simple layering

By air layering

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Properly cleaned, seed can be successfully stored


This plant is said to grow outdoors in the following regions:

Lisle, Illinois

Blue Diamond, Nevada

Arlington, Texas

Austin, Texas

Brownsville, Texas

Cedar Park, Texas

Converse, Texas

Kurten, Texas

Richmond, Texas

Round Rock, Texas

San Antonio, Texas(3 reports)

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Gardeners' Notes:


On May 1, 2020, Irisgirl7 from Weatherford, TX wrote:

The house we bought had 2 in the backyard. At first we loved these trees but the seedlings are a nightmare. By the time you can see them, they already have a good sized 6-8 ) taproot. If it breaks off upon pulling, were doomed. Nothing seems to kill them. Cant grow grass or have any kind of beds underneath them. They shed leaves, seeds or branches all year.


On Aug 27, 2018, vossner from East Texas,
United States (Zone 8a) wrote:

Gorgeous, tall tree. While native, it is not common in Harris or Ft Bend counties and certainly not as common as other elms.


On Sep 13, 2017, Rickwebb from Downingtown, PA wrote:

I did not expect to find two Cedar Elms planted at Morton Arboretum in Lisle, IL in the Elm Collection. This species is native from Mississippi to Arkansas to Texas in the South. It is a similar species to the Winged Elm, but this species had rough, more rounded leaves while the Winged species had more pointed leaves. This species produces flowers and seed in the autumn. Cedar Elm makes a good quality tree that usually grows about 50 to 70 feet high in a wide, oval-rounded outline. It does well in dry, heavy, and infertile soils. It is used as a shade tree in the Southwestern US. It should be used by the nursery trade. I'm sure there are some plants resistant to Dutch Elm Disease.


On Dec 10, 2008, realbirdlady from Austin, TX (Zone 8b) wrote:

Very well-adapted to Central Texas. They tend to grow naturally alongside ashe juniper ("cedar"), which is where their name comes from. They're good wildlife habitat, a larval food for a couple of kinds of butterflies, and a good nesting site for birds.

Cedar elm is also generally good as a yard shade tree. They grow fairly quickly, don't result in such deep shade as to leave bare dirt underneath, and have small enough leaves to simple allow to compost in place. They do need some simple pruning, especially when small, to form a strong structure and avoid limb breakage problems down the road. Some people are very allergic to the pollen however.


On Jan 7, 2005, MongoX from San Antonio, TX (Zone 9a) wrote:

Very common in South Bexar Country. When clearing brushy land, I tend to leave the cedar elms and mesquites and destroying all the hackberrys. When naturally occuring with hackberrys, the cedar elms won't grow to full height - once allowed the sun, they will spread out and flourish.