Photo by Melody

PlantFiles: Cedar Elm
Ulmus crassifolia

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

3 members have or want this plant for trade.


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)

Sun Exposure:
Full Sun
Sun to Partial Shade

Pollen may cause allergic reaction

Bloom Color:
Fuchsia (Red-Purple)
Pale Green

Bloom Time:
Late Summer/Early Fall

Grown for foliage

Other details:
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

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

Click thumbnail
to view:

By frostweed
Thumbnail #1 of Ulmus crassifolia by frostweed

By htop
Thumbnail #2 of Ulmus crassifolia by htop

By htop
Thumbnail #3 of Ulmus crassifolia by htop

By htop
Thumbnail #4 of Ulmus crassifolia by htop


2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive realbirdlady 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.

Positive MongoX 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.


This plant has been said to grow in the following regions:

Blue Diamond, Nevada
Arlington, Texas
Austin, Texas
Brownsville, Texas
Cedar Park, Texas
Converse, Texas
Kurten, Texas
Round Rock, Texas
San Antonio, Texas (3 reports)

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