Silver Leaf Willow vs Black Locust - TreeTime.ca

Silver Leaf Willow vs Black Locust

Robinia pseudoacacia

Salix alba sericea

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Black Locust
Silver Leaf Willow

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.

Native to North America, Silver Leaf Willow has orangish bark and long, silvery grey leaves. Bees and other insects are attracted to its flowers.

Popular as an ornamental tree for parks, it is also used as a shelterbelt species. It may not be as cold hardy as some of the other willow varieties, however.

Black Locust Quick Facts

Silver Leaf Willow Quick Facts

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Zone: 3a
Zone: 2a
Height: 12 m (40 ft)
Height: 15 m (50 ft)
Spread: 8 m (25 ft)
Spread: 15 m (50 ft)
Light: full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: fast
Growth rate: fast
Life span: long
Life span: long
Suckering: high
Suckering: high


Foliage: narrow-glossy
Fall colour: pale yellow
Bark: dark reddish brown to balck with furrows
Bark: yellow-brown
Flowers: Creamy white flowers in a pyramidal shape bloom in may-june
Seeds: dark brown peapod-like pods
Hybrid: no
Hybrid: no
Catkins: no
Catkins: yes


Other Names: false acacia, yellow locust
Other Names: white willow