Spicebush vs Mountain Alder - TreeTime.ca

Spicebush vs Mountain Alder

Alnus incana subsp. tenuifolia

Lindera benzoin

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Mountain Alder
Spicebush

Mountain Alder is a native cold-hardy shrub or small tree often found along streams and in moist forested habitats. Its nitrogen-fixing ability enriches soils and supports surrounding vegetation, while its extensive root system helps stabilize streambanks and slopes. The fast growth rate allows it to establish quickly on disturbed sites, making it especially valuable in reclamation, restoration, and erosion control projects.

Often forming dense thickets, Mountain Alder enhances habitat quality in riparian and upland areas. It provides food and cover for various wildlife, including birds and small mammals. Recognized as an important species for soil and water conservation, it is well suited for riparian planting, naturalization, and ecological restoration.

Note: We use Sitka Alder for Alnus incana subsp. tenuifolia. This species is also known by many other common names, including Grey Alder, River 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.

Mountain Alder Quick Facts

Spicebush Quick Facts

Zone: 1a
Zone: 4a
Height: 6 m (20 ft)
Height: 3 m (10 ft)
Spread: 3 m (10 ft)
Spread: 3 m (10 ft)
Light: partial shade, full sun
Light: any
Moisture: normal, wet
Moisture: normal, wet
Growth rate: medium
Growth rate: slow
Life span: medium
Life span: medium
Growth form: multi-stemmed, thicket-forming
Spreading: rhizomes - medium, seeds - low, layering - low
Suckering: medium


Foliage: fragrant
Bark: smooth, gray to brown
Flowers: greenish yellow
Berries: red
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: no


Native to: AB, BC, SK, YT, NT
Native to: ON
Other Names: river alder, speckled alder, thin-leaved alder, thinleaf alder, western river alder
Other Names: benjamin bush, common spicebush, northern spicebush, wild allspice