Duckweed

Lemna minor, Lemnaceae

Zones

2–11

Layer

Aquatic

Lifespan

Perennial

Growth

Fast

Guild Roles

Producer

Growing Conditions

Sun

Partial Shade (acceptable)Full Sun (optimal)

Water

High

Soil pH

5 – 8

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

RiceOryza sativa

Pest DeterrentNutrient Accumulation

Hardy Water LilyNymphaea odorata

Shade ProvisionNutrient Accumulation

Dwarf PapyrusCyperus papyrus dwarf

Wind ProtectionShade Provision

PapyrusCyperus papyrus

Shade ProvisionBeneficial Insect Habitat

Antagonistic Plants

Water HyacinthEichhornia crassipes

Dense water hyacinth mats block light needed by duckweed and may release growth-inhibiting compounds

Giant SalviniaSalvinia molesta

Giant salvinia creates dense floating mats that shade out duckweed and competes for dissolved nutrients

Water LettucePistia stratiotes

Water lettuce forms dense surface coverage that blocks light to duckweed and may release growth-inhibiting compounds

Uses

Functions

Water FiltrationFoodFodder

Edible Parts

Leaves

Common Questions

What zones does Duckweed grow in?

Duckweed grows in USDA hardiness zones 2 through 11.

What are good companion plants for Duckweed?

Good companions for Duckweed include Rice, Hardy Water Lily, Dwarf Papyrus, Papyrus.

Design guilds with Duckweed and see companion relationships visually.

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