Variable-leaf Water-milfoil

Myriophyllum heterophyllum, Haloragaceae

Zones

4–10

Layer

Herbaceous

Lifespan

Perennial

Growth

Fast

Guild Roles

ProducerBeneficial Insect Habitat

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

High (established)High (seedling)

Soil pH

6.5 – 8

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Yellow Water LilyNymphaea mexicana

Beneficial Insect HabitatPollinator Sharing

Water SnowflakeNymphoides indica

Beneficial Insect Habitat

Giant DuckweedSpirodela intermedia

Shade ProvisionBeneficial Insect Habitat

Richardson's PondweedPotamogeton richardsonii

Beneficial Insect Habitat

Antagonistic Plants

Broad-leaved PondweedPotamogeton natans

Variable-leaf Water-milfoil competes with Broad-leaved Pondweed for underwater light resources

Yellow CabombaCabomba aquatica

Dense submerged plants competing for light and nutrients, with potential allelopathic interactions

Marsh Mermaid WeedProserpinaca palustris

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

Uses

Functions

Water FiltrationOxygenationNutrient CyclingHabitat Creation

Common Questions

What zones does Variable-leaf Water-milfoil grow in?

Variable-leaf Water-milfoil grows in USDA hardiness zones 4 through 10.

What are good companion plants for Variable-leaf Water-milfoil?

Good companions for Variable-leaf Water-milfoil include Yellow Water Lily, Water Snowflake, Giant Duckweed, Richardson's Pondweed.

Design guilds with Variable-leaf Water-milfoil and see companion relationships visually.

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