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Ussurian Pear (Siberian) vs Black Walnut

Pyrus ussuriensis

Juglans nigra

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Ussurian Pear (Siberian)
Black Walnut

Ussurian Pear (aka Manchurian or Siberian Pear) is the most cold hardy of all pear species.

This self-pollinating pear bears white flowers in the spring and has good fall colour, making it an exceptional ornamental addition to any garden. However, it has a tendency to branch quite low and is often used in shelterbelts and hedges too.

It is primarily grown for its attractive flowers and pollination of other pear varieties, or as cold hardy rootstock, and is also an excellent addition to any shelterbelt.

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.

USSURIAN PEAR (SIBERIAN) QUICK FACTS

BLACK WALNUT QUICK FACTS

Zone: 3a
Zone: 3a
Height: 10 m (33 ft)
Height: 14 m (45 ft)
Spread: 8 m (26 ft)
Spread: 9 m (30 ft)
Moisture: normal
Moisture: dry, normal
Light: full sun
Light: partial shade, full sun
Fall colour: burgundy
Berries: yellow fruit (low quality, self pollinating)
Flowers: white flowers in spring
Growth rate: fast
Growth rate: slow
Life span: long
Life span: long
Maintenance: medium
Suckering: none
Suckering: low
Pollution tolerance: high
Pollution tolerance: high





Other Names: american walnut


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