Slippery Elm, Red Elm

Ulmusrubra

Family
Ulmaceae (ulm-AY-see-ee)
Genus
Ulmus (ULM-us)
Species
rubra (ROO-bruh)
Synonym
Ulmus fulva
Sun Exposure
Full Sun
Foliage
Deciduous
Height
over 40 ft. (12 m)
Spacing
over 40 ft. (12 m)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
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)
Bloom Color
Inconspicuous/none
Bloom Time
Late Spring/Early Summer
Other Details
Category
Trees
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Propagation Methods
From softwood cuttings
From seed; direct sow outdoors in fall
By grafting
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

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

Champaign, Illinois

Glen Ellyn, Illinois

Valparaiso, Indiana

Denison, Iowa

Iowa City, Iowa

Benton, Kentucky

Calvert City, Kentucky

Coushatta, Louisiana

Middletown, Ohio

West Chester, Pennsylvania

Richland Springs, Texas

Lexington, Virginia

Appleton, Wisconsin

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Featured Videos

Gardener's Notes:

4
positives
1
neutral
0
negative
Sort By:
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R
Downingtown, PA | August 2015 | positive

Slippery Elm is still common in various spots around the Midwest and East US. It oftentimes is a weed tree in rough or abandoned areas or...Read More

P
Valparaiso, IN | May 2013 | positive

Beautiful tree. It's native to eastern North America (from southeast North Dakota, east to Maine and southern Quebec, south to northernmo...Read More

P
Las Vegas, NV | August 2008 | positive

The slimy inner bark is one of the 4 main ingredients for Essiac Tea. Essiac Tea is an old indian remedy for fighting cancer.

R
Walkerton, VA (Zone 7a) | February 2006 | neutral

The slimy inner bark makes a pleasant tea when steeped for 15 minutes in hot water; dried and ground it yields a nutritious flour.

M
M
Benton, KY (Zone 7a) | July 2004 | positive

A 40 to 60 foot tree at maturity, Slippery Elms were once used as a scurvy preventative when the slimy inner bark was dried and ground in...Read More

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