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American Mannagrass

Glyceria grandis

28
Good

Native to Mississippi (estimated). How scores work Is it native here?

Profile 94%

Height
3–5 feet
Light
Full sun
Soil moisture
Moist to wet
Will it fit your yard?

At a glance

Bloom
June to September

Not yet recorded · Spread · Life cycle · Leaves

County records are not available.

Ecological relationships

Who uses this plant?

What these records mean

4CaterpillarsGenus host records with ranges including MS

Genus host records with ranges including MS · Glyceria

  • Leucania commoidesDusky Wainscot, Comma Wainscot
  • Limochores origenesCrossline Skipper
  • Mythimna unipunctaArmyworm Moth, White Speck
  • Polites themistoclesTawny-Edged Skipper
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist beesPollen specialists
2BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Glyceria

  • Aythya americanaRedhead
  • Meleagris gallopavoWild Turkey
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Poaceae

What its natural habitat tells you

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
  • Bloom · “June to September” · Prairie Moon 2026 Cultural Guide · Nursery cultural guide; height in flower; moisture categories retained as printed
  • Height · “3–5 feet” · Tennessee Smart Yards (ranked first; Prairie Moon 2026 Cultural Guide differs) · Published Tennessee growing guidance; exact cached scientific heading
  • Light · “Full sun” · Tennessee Smart Yards (ranked first; Prairie Moon 2026 Cultural Guide differs) · Published Tennessee growing guidance; exact cached scientific heading
  • Soil · “wet to moderately wet” · Tennessee Smart Yards (ranked first; Prairie Moon 2026 Cultural Guide differs) · Published Tennessee growing guidance; exact cached scientific heading
Also known as

American Manna Grass

Conservation status

Mississippi rankSNR
Global rankG5
MS statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

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How to check your spot

Growing cautions

For planning only; these do not change the score or Fit.

Sources