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Siberian Elm vs Black Walnut

Ulmus pumila

Juglans nigra

ONLY AVAILABLE BY CONTRACT GROW

SOLD OUT

Siberian Elm
Black Walnut

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.

The Black Walnut is a slow growing, large, straight-stemmed tree with an open crown. It produces dense, very hard, edible nuts.

Black Walnut has a deeply-furrowed, black bark. Its leaves are about 1 foot long, composed of 15 - 23 slightly stalked leaflets on a moderately stout stock which provide good dappled shade.

Despite being highly valued for its edible nuts and its shade tree aesthetics, it is rare to see this tree on the prairies.

Note: Black Walnut's roots produce a substance named juglone that is toxic to some other plants. Consider this when choosing where you plant a black walnut, as you will not be able to grow tomato, potato, cabbage, eggplant, blueberry, azalea, rhododendron, lilac, red pine and apple in the surrounding area.

Note: plant this tree once. It will not respond well to transplanting.

Note: Although self-pollinating, planting two trees significantly improves nut production.

SIBERIAN ELM QUICK FACTS

BLACK WALNUT QUICK FACTS

Zone: 2b
Zone: 3a
Height: 20 m (66 ft)
Height: 14 m (45 ft)
Spread: 9 m (30 ft)
Spread: 9 m (30 ft)
Moisture: dry, normal
Moisture: dry, normal
Light: full sun
Light: partial shade, full sun
Fall colour: bright yellow
Growth rate: fast
Growth rate: slow
Life span: medium
Life span: long
Maintenance: low
Suckering: none
Suckering: low
Pollution tolerance: high
Pollution tolerance: 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: american walnut


Ships To Canada: yes
Ships to USA: yes
Ships To Canada: yes
Ships to USA: yes