Swamp Rose Mallow (Hibiscus) vs Knotted Rush - TreeTime.ca

Swamp Rose Mallow (Hibiscus) vs Knotted Rush

Hibiscus moscheutos

Juncus nodosus

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Swamp Rose Mallow (Hibiscus)
Knotted Rush

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.

Knotted Rush is a native perennial wetland plant found growing in marshes, swamps, wet meadows, and along shorelines. It spreads by underground rhizomes to form colonies, which can also help stabilize soils and shorelines.

Its upright, slender stems and small clusters of greenish-brown seed heads add structure to wetland plant communities. Knotted Rush is well-suited to wetland conservation, rain gardens, naturalization, and restoration projects. As a cool-season grower, it grows actively during spring and fall, when temperatures are cooler.

Swamp Rose Mallow (Hibiscus) Quick Facts

Knotted Rush 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: 0.2 m (0.5 ft)
Light: full sun
Light: full sun
Moisture: normal, wet
Moisture: wet
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, colony forming
Spreading: rhizomes - medium
Suckering: low


Flowers: pink-red
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: ON
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, 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