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Marsh Mermaid Weed

Proserpinaca palustris, Haloragaceae

Zones
4–9
Layer
Herbaceous
Lifespan
Perennial
Growth
Moderate

Guild Roles

Ground CoverBeneficial Insect Habitat

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

High (established)High (seedling)

Soil pH

5.5 – 7.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Many-flowered Marsh PennywortHydrocotyle umbellata
Pollinator Sharing
Cuckoo FlowerCardamine pratensis
Beneficial Insect Habitat
Delta BulrushSchoenoplectus deltoides
Physical SupportBeneficial Insect Habitat

Antagonistic Plants

Variable-leaf Water-milfoilMyriophyllum heterophyllum

Dense submerged plants with finely divided leaves competing for light in water column

Uses

Functions

Water FiltrationErosion ControlHabitat CreationNutrient Cycling

Common Questions

What zones does Marsh Mermaid Weed grow in?

Marsh Mermaid Weed grows in USDA hardiness zones 4 through 9.

What are good companion plants for Marsh Mermaid Weed?

Good companions for Marsh Mermaid Weed include Many-flowered Marsh Pennywort, Cuckoo Flower, Delta Bulrush.

Design guilds with Marsh Mermaid Weed and see companion relationships visually.

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