Green Alder vs Spicebush - TreeTime.ca

Green Alder vs Spicebush

Alnus alnobetula subsp. crispa

Lindera benzoin

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Green Alder
Spicebush

Green Alder is a native, cold-hardy shrub found in boreal forests, along slopes, and in open upland habitats. It fixes nitrogen in the soil, improving fertility and helping other plants grow, while its roots help stabilize slopes and disturbed ground. Fast to establish on poor soils, it is widely used in reclamation, restoration, and erosion control projects.

With its smooth grey bark and shiny green leaves, Green Alder often forms dense thickets that provide cover for birds and small mammals. Its seeds, buds, and catkins also supply food for wildlife. Green Alder is well suited for naturalization and ecological restoration.

Note: We use Green Alder for Alnus alnobetula subsp. crispa. This species is also known by many other common names, including Mountain Alder, Sitka Alder, and others. Please confirm the scientific name to ensure you are ordering the correct plant.

The Spicebush is an unique ornamental shrub that blooms with vibrant yellow flowers and bright green foliage. The foliage goes from green to yellow in the autumn, adding fall interest to your garden.The plant is dioecious, meaning that you will need male and female plants in order to harvest it’s red berries. Berries are only produced on female plants. The berries themselves aren’t that sweet, and are mostly enjoyed by birds and other wildlife.

The Spicebush, also commonly known as Common Spicebush, Northern Spicebush, Wild Allspice, and Benjamin Bush, is named after its distinctive spicy-sweet fragrance that comes from the flowers.

Green Alder Quick Facts

Spicebush Quick Facts

Zone: 1a
Zone: 4a
Height: 7 m (23 ft)
Height: 3 m (10 ft)
Spread: 3 m (10 ft)
Spread: 3 m (10 ft)
Light: any
Light: any
Moisture: any
Moisture: normal, wet
Growth rate: fast
Growth rate: slow
Life span: short
Life span: medium
Suckering: high
Suckering: medium


Foliage: fragrant
Flowers: greenish yellow
Berries: red
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: no

In row spacing: 0.9 m (3 ft)

Between row spacing: 5 m (16 ft)
Native to: AB, SK, MB, ON, NS, NB, NL, YT
Native to: ON
Other Names: american green alder
Other Names: benjamin bush, common spicebush, northern spicebush, wild allspice