Sandbar Willow vs American Sweet Flag - TreeTime.ca

Sandbar Willow vs American Sweet Flag

Salix exigua

Acorus americanus

CUSTOM GROW

CUSTOM GROW

Sandbar Willow
American Sweet Flag

Sandbar Willow is a deciduous species native to much of North America. This mid-sized, fast-growing shrub can be found in very wet areas, making it an ideal plan to use in a wet area with erosion risk.

Sandbar Willow has long, narrow green leaves, and its grassy narrow stems give it an attractive, bamboo-like appearance.

All willow are important to native pollinators each spring as they have higher amounts of pollen and nectar early each growing season when other food sources are scarce.

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.

Sandbar Willow Quick Facts

American Sweet Flag Quick Facts

Zone: 2a
Zone: 3a
Height: 4 m (13 ft)
Height: 0.9 m (3 ft)
Spread: 3 m (10 ft)
Spread: 0.6 m (2.0 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: any
Moisture: wet
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, colony-forming
Spreading: rhizomes - high
Suckering: medium


Foliage: fragrant
Flowers: yellow floral spike
Bloom time: spring to summer
Seeds: located within the capsules on the catkins
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: no


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