Laurel Leaf Willow vs American Sweet Flag - TreeTime.ca

Laurel Leaf Willow vs American Sweet Flag

Salix pentandra

Acorus americanus

CUSTOM GROW

Laurel Leaf Willow
American Sweet Flag

Laurel Leaf Willow is a round-shaped tree with attractive dark green leaves.

This cold hardy tree can withstand bitter winters and still put on lots of growth every summer. Laurel Leaf Willow prefers moist to wet ground and full sun, though it can tolerate partial shade too. This species is also known as one of the more salt-tolerant species for those with saline soils.

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.

Laurel Leaf Willow Quick Facts

American Sweet Flag Quick Facts

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Zone: 2b
Zone: 3a
Height: 15 m (49 ft)
Height: 0.9 m (3 ft)
Spread: 8 m (25 ft)
Spread: 0.6 m (2.0 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: wet
Growth rate: fast
Growth rate: fast
Life span: medium
Life span: short
Growth form: upright, colony-forming
Spreading: rhizomes - high
Suckering: medium


Foliage: long, glossy
Foliage: fragrant
Flowers: yellow floral spike
Bloom time: spring to summer
Seeds: within the capsules
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: no

In row spacing: 2.4 - 3 m (8 - 10 ft)

Between row spacing: 5 m (16 ft)
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, NT, PE
Other Names: bay willow, bay-leaf willow, laurel willow
Other Names: american sweetflag