Tall Manna Grass vs Harebell - TreeTime.ca

Tall Manna Grass vs Harebell

Campanula rotundifolia

Glyceria grandis

NOT AVAILABLE THIS SEASON

(new stock expected: fall of 2026)

ONLY AVAILABLE BY CONTRACT GROW

Harebell
Tall Manna Grass

Harebell is a native perennial wildflower known for its bell-shaped, blue-violet flowers. The noddling blooms occur in clusters at the top of slender stems. Blooming in bursts from summer to fall, the flowers attract pollinators such as butterflies, bees, and hummingbirds.

Regular deadheading encourages additional blooms, extending its floral display through the season. Harebell prefers areas with cooler summer climates and does poorly in those that get too hot and humid. It is well suited for native wildflower gardens, pollinator gardens, and naturalization projects.

As a perennial, it dies back to the crown each winter, it will regrow from the base in the spring. Avoid disturbing the crown during late winter to ensure healthy growth the following season.

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.

Harebell Quick Facts

Tall Manna Grass Quick Facts

Zone: 3a
Zone: 1a
Height: 0.3 m (1.0 ft)
Height: 1.2 m (4 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.6 m (2.0 ft)
Moisture: dry, normal
Moisture: wet
Light: partial shade, full sun
Light: full sun
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no
Flowers: bluish-purple; bell-like
Flowers: purple
Growth rate: very fast
Growth rate: fast
Life span: short
Life span: short
Suckering: none
Suckering: medium




Toxicity: toxic to cattle
Other Names: bluebell, bluebell bellflower, bluebell of scotland, common harebell, cuckoos shoe, ladys thimble, scotch bluebell, scottish bluebell, witches thimble
Other Names: american manna grass, reed manna grass