Ussurian Pear (Siberian) vs Black Cottonwood - TreeTime.ca

Ussurian Pear (Siberian) vs Black Cottonwood

Pyrus ussuriensis

Populus trichocarpa

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Ussurian Pear (Siberian)
Black Cottonwood

Ussurian Pear is the most cold hardy of all pear species. It is frequently used as a rootstock or as a pollinizer for other pear varieties. The pinkish-white flowers that bloom in the spring and the striking fall colours make it well-suited as an ornamental addition to your landscape.

Ussurian Pear can also be used for forming hedges as it tends to branch quite low.

While the Ussurian Pear is considered self-pollinating, planting with another pear variety will increase yields. Can be paired with Krazulya Pear or Beedle Pear.

Black Cottonwood is the largest and tallest of the North American poplars. Named after its white, fluffy seeds with cottony hairs, this hardy tree produces sticky, fragrant buds and has a straight growth habit. Black Cottonwood needs ample moisture and nutrients to grow successfully to full height and are found in the Western provinces and the Yukon with BC being its heartland.

Ussurian Pear (Siberian) Quick Facts

Black Cottonwood Quick Facts

Zone: 3a
Zone: 4a
Height: 10 m (33 ft)
Height: 30 m (100 ft)
Spread: 8 m (26 ft)
Spread: 11 m (35 ft)
Moisture: normal
Moisture: normal, wet
Light: full sun
Light: full sun
Hybrid: no
Hybrid: no
Catkins: no
Catkins: yes
Fall colour: burgundy
Flowers: white
Growth rate: fast
Growth rate: fast
Life span: long
Life span: long
Maintenance: medium
Maintenance: medium
Suckering: none
Suckering: medium




Other Names: harbin pear, manchurian pear, siberian pear
Other Names: balsam cottonwood, california poplar, western balsam poplar