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Acorus americanus – American Sweet Flag

Additional information

Common Name

Type

Family

Zone

3, 4, 5, 6, 7

Native?

Native Range

Canada, North America

Height Range (ft.)

2.00 to 3.00

Spread (ft.)

1.00 to 2.00

Bloom Time

, ,

Bloom Description

Greenish, Not Showy, Yellow

Sun

,

Water

,

Maintenance

Suggested Use

, , ,

Tolerate

, ,

Attracts

Growth Rate

Size

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Acorus americanus – American Sweet Flag

Acorus americanus Sweet Flag is a native wetland perennial with aromatic, sword-shaped foliage. Thrives in moist to wet soils, making it perfect for rain gardens and pond edges. Deer-resistant and low-maintenance, it enhances biodiversity and prevents erosion.

$18.99

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Additional information

Common Name

Type

Family

Zone

3, 4, 5, 6, 7

Native?

Native Range

Canada, North America

Height Range (ft.)

2.00 to 3.00

Spread (ft.)

1.00 to 2.00

Bloom Time

, ,

Bloom Description

Greenish, Not Showy, Yellow

Sun

,

Water

,

Maintenance

Suggested Use

, , ,

Tolerate

, ,

Attracts

Growth Rate

Size

Product Description

Acorus americanus – Sweet Flag is a native wetland perennial known for its aromatic, sword-like foliage and ability to thrive in moist to wet soils. This grass-like plant is perfect for rain gardens, pond edges, and wetland restorations, providing both visual appeal and ecological benefits. The fragrant leaves release a sweet scent when crushed, making it a sensory delight in the garden. In summer, it produces small, inconspicuous yellow-green flowers, adding subtle interest to the landscape. Resistant to deer and pests, Acorus americanus is a low-maintenance and pollinator-friendly plant that enhances biodiversity. Thriving in full sun to partial shade, this plant helps prevent soil erosion while creating a natural habitat for beneficial insects and wildlife.

Why Choose Acorus americanus – Sweet Flag?

  • Native and Eco-Friendly: Supports local ecosystems and helps stabilize wetland areas.
  • Fragrant and Aesthetic: The sweet-smelling, sword-shaped leaves add beauty and texture to moist landscapes.
  • Resilient and Low-Maintenance: Thrives in wet conditions, resists deer and pests, and requires little care.

Cultivating Tips:

  • Prefers moist to wet soil and can tolerate seasonal flooding.
  • Best grown in full sun to partial shade for optimal growth.
  • Can be propagated by division in early spring or fall.

Design Ideas for Your Garden:

Acorus americanus – Sweet Flag is ideal for naturalized wetland gardens, rain gardens, and pond edges. It pairs well with ferns, sedges, and irises to create a lush, moisture-loving plant combination. It can also be used to line walkways near water features for a soft, naturalized look.

Ecological Benefits:

As a native wetland species, Sweet Flag helps filter pollutants from water runoff, improving water quality in ponds and rain gardens. It provides habitat and shelter for beneficial insects and contributes to the overall health of wetland ecosystems. Its deep root system stabilizes soil, reducing erosion along streambanks and water edges.

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Frequently Asked Questions

What are the ideal growing conditions for American Sweet Flag?

American Sweet Flag thrives in full sun to partial shade and prefers moist to wet soil, making it an excellent choice for rain gardens, pond edges, and wetland restoration projects.

How tall and wide does Acorus americanus grow?

This perennial typically grows 2 to 3 feet tall and spreads 1 to 2 feet wide, forming upright clumps of sword-like, bright green foliage.

Does American Sweet Flag produce flowers?

Yes! It blooms in late spring to early summer, producing small, greenish-yellow flowers on a cylindrical spadix, though they are often inconspicuous compared to the striking foliage.

Is Acorus americanus deer-resistant?

Yes, it is deer- and rabbit-resistant, as its aromatic foliage is unappealing to browsing animals.

How do I maintain American Sweet Flag?

This is a low-maintenance plant. It spreads gradually by rhizomes and requires little care beyond keeping the soil consistently moist. Cutting back old foliage in early spring encourages fresh growth.

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Acorus americanus – American Sweet Flag

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