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Siberian Elm vs Black Locust

Ulmus pumila

Robinia pseudoacacia

ONLY AVAILABLE BY CONTRACT GROW

SOLD OUT

Siberian Elm
Black Locust

Siberian Elm is a small to medium-sized deciduous tree. It has a similar form to American Elm, but smaller, with a more pyramidal habit and shorter lifespan. It is also more resistant to Dutch Elm disease and is very salt tolerant.

Siberian Elm was grown as shelterbelts in the prairies after the Dustbowl disasters, where its rapid growth and tolerance for drought and cold initially made it a great success. It is an excellent shade tree.

Note: Due to it's increasingly controversial reputation for being invasive in warmer climates, we are no longer planning to grow this species for retail purchase on a regular basis.

Black Locust is an attractive tree. Its distinctive leaves are made of about a dozen bright green leaflets. It also notable for its fragrant white flowers, which smell of citrus.

Black Locust can grow in many situations, but prefers dry areas with lots of sun. It is robust and is an excellent choice for establishing shade in dry, open areas.

Important note: Much of the Black Locust is toxic to humans and livestock, including seeds, bark, and leaves.

SIBERIAN ELM QUICK FACTS

BLACK LOCUST QUICK FACTS

Zone: 2b
Zone: 3a
Height: 20 m (66 ft)
Height: 12 m (40 ft)
Spread: 9 m (30 ft)
Spread: 8 m (25 ft)
Moisture: dry, normal
Moisture: dry, normal
Light: full sun
Light: full sun
Fall colour: bright yellow
Flowers: Creamy white flowers in a pyramidal shape bloom in may-june
Bark: dark reddish brown to balck with furrows
Growth rate: fast
Growth rate: fast
Life span: medium
Life span: long
Suckering: none
Suckering: high

In row spacing: 2.4 - 3 m (8 - 10 ft)

Between row spacing: 5 m (16 ft)



Other Names: asiatic elm, chinese elm, dwarf elm
Other Names: false acacia, yellow locust