American Elm, White Elm
Ulmus americana 'Princeton'

Family: Ulmaceae (ulm-AY-see-ee) (Info)
Genus: Ulmus (ULM-us) (Info)
Species: americana (a-mer-ih-KAY-na) (Info)
Cultivar: Princeton

Category:

Trees

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)

Sun Exposure:

Full Sun

Danger:

N/A

Bloom Color:

Red

Bloom Time:

Late Winter/Early Spring

Foliage:

Deciduous

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Non-patented

Propagation Methods:

From softwood cuttings

From semi-hardwood cuttings

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Regional

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

Tonopah, Arizona

Wellborn, Florida

Saint John, Indiana

Denison, Iowa

Kingman, Kansas

Louisville, Kentucky

Princeton, New Jersey

Malvern, Pennsylvania

Cordova, Tennessee

show all

Gardeners' Notes:

4
positives
2
neutrals
0
negatives
RatingContent
Positive

On Jul 7, 2015, Rickwebb from Downingtown, PA wrote:

This is actually an old cultivar developed by Princeton Nursery in New Jersey in 1922 before Dutch Elm Disease got loose in America. It was noticed in the 1990's in the town of Princeton, NJ, that plantings of this cultivar were all doing fine, not affected by DED. To this time of 2015, there are some lines of this elm about 60 feet high all doing fine in front of Princeton University. This has good resistance to DED, though it is susceptible to Elm Yellows Disease (Phloem Necrosis) if it ever comes by. I encouraged a friend to buy A Princeton Elm in a nearby town in southeast PA. American Elm and many other trees should not be planted into a monoculture in case of any serious problems to come. I encourage the planting of some DED resistant American Elms around.

Neutral

On Mar 26, 2015, coriaceous from ROSLINDALE, MA wrote:

This is the most commonly planted American elm cultivar today.

There are now a few cultivars with proven tolerance for Dutch Elm Disease. Controlled testing shows this is one. It also shows resistance to elm leaf beetle.

Classic American elm vase-shaped habit.

Suitable for specimen use where there's enough space. Space at least 50' apart. Mature height is 60-80' or greater.

Pest and disease issues suggest that the mass planting of a single cultivar is inadvisable.

Positive

On Apr 15, 2011, azfred from Tonopah, AZ wrote:

Grows Well In the Phoenix, Az area

Positive

On Jun 30, 2007, jgroend from Cordova, TN wrote:

We bought two 3ft tall 1/2 inch diameter trees in spring 2002. One of them has gone crazy and is now 35 ft or so and the trunk is nearly 9 inches in diameter. The other one is about 25 ft tall and 6 inches in diameter. They were $50 apiece in 2002 and I consider them one of our better investments. They are planted about 65 feet apart in our front yard to someday (sooner than later I expect) provide the beautiful cathedral-like arched canopy only an American Elm can provide. My folks planted one in Hinsdale, Illinois in 1954 and that plant is still alive and thriving- you just can't beat some memories.

Positive

On Nov 19, 2006, lkz5ia from Denison, IA (Zone 5b) wrote:

My tree is growing fast like what we expect from an american elm. Only problem is that they cost alot. Bring the glory back to the countryside, plant an DED-resistant american elm.

Neutral

On Sep 6, 2005, darylmitchell from Saskatoon, SK (Zone 3a) wrote:

This is a variety of the true elm, Ulmus americana, not a hybrid. Supposedly this elm has shown high resistance to the Dutch Elm Disease fungus.