Black Elderberry vs American Sweet Flag - TreeTime.ca

Black Elderberry vs American Sweet Flag

Acorus americanus

Sambucus canadensis

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

American Sweet Flag
Black Elderberry

American Sweet Flag is a native perennial wetland plant found along shorelines, streams, wet meadows, and marshes. Its extensive rhizome system allows it to spread and stabilise soil, helping maintain the edges of ponds and streams. This dense growth provides cover for small animals and supports overall wetland biodiversity, while the rhizomes and seeds serve as food for small mammals and waterfowl. Cold-hardy and resilient, it is well-suited for ecological restoration, riparian plantings, erosion control, and naturalization projects.

The plant grows in dense clumps with tall, sword-shaped leaves that release a citrus-like scent when bruised. The rhizomes are aromatic, with a spicy, cinnamon-like fragrance that has been used in perfumery and flavouring. In early summer, American Sweet Flag produces a distinctive floral spike (spadix), adding visual interest to wetland plantings.

Black Elderberry is a deciduous shrub native to eastern North America. You can plant this shrub in moist areas and it will help stabilize your soil. You can also use it on rural properties anywhere you'd use a lilac.

Black Elderberries are considered to be partially self-pollinating. So while they will still produce some berries without cross-pollination, planting with another variety will increase yields. Consider planting with Ranch Elderberry or Bob Gordon Elderberry.

Warning: the seeds, stems, leaves, roots, and uncooked berries of the Black Elderberry are poisonous to humans when eaten in quantity. You should cook the berries to make them safe for human consumption.

American Sweet Flag Quick Facts

Black Elderberry Quick Facts

Zone: 3a
Zone: 3a
Height: 0.9 m (3 ft)
Height: 3 m (10 ft)
Spread: 0.6 m (2.0 ft)
Spread: 2.4 m (8 ft)
Light: partial shade, full sun
Light: any
Moisture: wet
Moisture: normal, wet
Growth rate: fast
Growth rate: medium
Life span: short
Life span: short
Growth form: upright, colony-forming
Spreading: rhizomes - high
Suckering: medium


Toxicity: leaves, stems, and uncooked berries are poisonous to humans
Foliage: fragrant
Bark: gray brownish with rigid bumps
Flowers: yellow floral spike
Flowers: fragrant, white and showy
Bloom time: spring to summer
Berries: black
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, NT, PE
Native to: AB, MB, ON, QC, NS, NB, PE
Other Names: american sweetflag
Other Names: american black elderberry, american elderberry, canada elderberry, common elderberry