Tall Manna Grass vs Swamp Rose Mallow (Hibiscus) - TreeTime.ca

Tall Manna Grass vs Swamp Rose Mallow (Hibiscus)

Glyceria grandis

Hibiscus moscheutos

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Tall Manna Grass
Swamp Rose Mallow (Hibiscus)

Manna Grass and other waterside plants are an excellent way to prevent erosion and provide habitat and forage for animals. The difference is that Manna Grass looks better doing it! With distinctive purple grains at the top of its stalks, Manna Grass adds a splash of color to the waterside that most other aquatics can't offer.

Manna Grass is good for returning disturbed sites to nature and provides nourishment to many animals, except for cattle who find it toxic.

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.

Tall Manna Grass Quick Facts

Swamp Rose Mallow (Hibiscus) Quick Facts

Zone: 1a
Zone: 5a
Height: 1.2 m (4 ft)
Height: 1.5 m (5 ft)
Spread: 0.6 m (2.0 ft)
Spread: 0.9 m (3 ft)
Moisture: wet
Moisture: normal, wet
Light: full sun
Light: full sun
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no
Flowers: purple
Flowers: pink-red
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Suckering: medium
Suckering: low



Toxicity: toxic to cattle

Other Names: american manna grass, reed manna grass
Other Names: crimson-eyed rose-mallow, dinner plate hibiscus, eastern rosemallow, hardy hibiscus, marsh mallow, marshmallow hibiscus, sea hollyhock, swamp mallow, swamp rose hibiscus