Swamp Rose Mallow (Hibiscus) vs Seaside Arrowgrass - TreeTime.ca

Swamp Rose Mallow (Hibiscus) vs Seaside Arrowgrass

Hibiscus moscheutos

Triglochin maritima

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Swamp Rose Mallow (Hibiscus)
Seaside Arrowgrass

Swamp Rose Mallow (Hibiscus) has large white-pink showy flowers which attract hummingbirds and pollinators to your yard. It is a tall, fast growing perennial shrub. The flowers typically only last 1-2 days, but the plant will continue to rebloom throughout the season.

This hibiscus tolerates heat and humidity but does not do well when exposed to wind. Make sure the plant has access to lots of moisture for better flowering.

The Swamp Rose Mallow (Hibiscus) is also known as the dinner plate hibiscus because it can grow incredibly large flowers, as big as dinner plates.

Seaside Arrowgrass is a native perennial commonly found in wetlands, salt marshes, and moist meadows. It is especially suitable for difficult growing sites. Its dense root system helps stabilize soil, while also providing food, cover, and habitat for small animals within the wetland community.

Seaside Arrowgrass is suitable for shoreline stabilization, wetland restoration, and naturalization projects.

Swamp Rose Mallow (Hibiscus) Quick Facts

Seaside Arrowgrass Quick Facts

Zone: 5a
Zone: 1b
Height: 1.5 m (5 ft)
Height: 0.5 m (1.5 ft)
Spread: 0.9 m (3 ft)
Spread: 0.3 m (1.0 ft)
Light: full sun
Light: full sun
Moisture: normal, wet
Moisture: wet
Growth rate: fast
Growth rate: medium
Life span: short
Life span: short
Growth form: upright, clump-forming
Spreading: rhizomes-low, seeds-low
Suckering: low


Toxicity: can be toxic to humans and livestock
Flowers: pink-red
Flowers: very small, pinkish-white, hair like
Bloom time: spring to early summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: ON
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: crimson-eyed rose-mallow, dinner plate hibiscus, eastern rosemallow, hardy hibiscus, marsh mallow, marshmallow hibiscus, sea hollyhock, swamp mallow, swamp rose hibiscus
Other Names: common arrowgrass, common bog arrowgrass, shore arrowgrass