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Floating Sweet Grass

Glyceria fluitans, Poaceae

Zones
3–8
Layer
Herbaceous
Lifespan
Perennial
Growth
Moderate

Guild Roles

ProducerGround CoverBeneficial Insect Habitat

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

High (established)High (fruiting)High (seedling)

Soil pH

6 – 8.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Three-square BulrushSchoenoplectus americanus
Pollinator SharingBeneficial Insect Habitat
Northern Bur-reedSparganium hyperboreum
Beneficial Insect Habitat
Floating Primrose-willowLudwigia peploides
Beneficial Insect HabitatPollinator Sharing
Slender CottongrassEriophorum gracile
Wind ProtectionBeneficial Insect Habitat
Bay Forget-me-notMyosotis laxa
Physical SupportWind Protection

Antagonistic Plants

Pale SpikerushEleocharis macrostachya

Dense floating sweet grass growth can outcompete spike-rushes for nutrients and light in shallow water areas

Sessilefruit ArrowheadSagittaria rigida

Dense grass growth can crowd out arrowhead plants in shallow water margins through root competition

Uses

Functions

Water FiltrationErosion ControlHabitatEdible Grain Production

Edible Parts

SeedsYoung Shoots

Medicinal Uses

Digestive Aid

Common Questions

What zones does Floating Sweet Grass grow in?

Floating Sweet Grass grows in USDA hardiness zones 3 through 8.

What are good companion plants for Floating Sweet Grass?

Good companions for Floating Sweet Grass include Three-square Bulrush, Northern Bur-reed, Floating Primrose-willow, Slender Cottongrass, Bay Forget-me-not.

Design guilds with Floating Sweet Grass and see companion relationships visually.

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