Tall Manna Grass vs Smooth Aster - TreeTime.ca

Tall Manna Grass vs Smooth Aster

Glyceria grandis

Symphyotrichum laeve

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Tall Manna Grass
Smooth Aster

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.

Smooth Aster is a native perennial wildflower known for its violet-blue, daisy-like flowers. They bloom later in the season, from late summer to early fall. The flowers attract a variety of pollinators, including bees, butterflies, and other beneficial insects. It also serves as a host plant for the Silvery Checkerspot (Chlosyne nycteis) and Pearl Crescent (Phyciodes tharos) butterflies, further enhancing its ecological value. This easy-to-grow wildflower is well suited for native wildflower gardens, pollinator gardens, and naturalization projects.

The Smooth Aster’s non-aggressive root system allows it to spread slowly, and it is more likely to reproduce by seed, which can be controlled through deadheading.

Tall Manna Grass Quick Facts

Smooth Aster Quick Facts

Zone: 1a
Zone: 3a
Height: 1.2 m (4 ft)
Height: 0.9 m (3 ft)
Spread: 0.6 m (2.0 ft)
Spread: 0.6 m (2.0 ft)
Light: full sun
Light: partial shade, full sun
Moisture: wet
Moisture: dry, normal
Growth rate: fast
Growth rate: very fast
Life span: short
Life span: short
Suckering: medium
Suckering: none

Toxicity: toxic to cattle

Foliage: long thin leaves
Flowers: purple
Flowers: purplish-blue; daisy-like
Bloom time: late summer to early fall
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, PE
Native to: AB, BC, SK, MB, ON
Other Names: american manna grass, reed manna grass
Other Names: glaucous aster, smooth blue aster