PatternBaseRed-stem Watermilfoil
Myriophyllum propinquum, Haloragaceae
Zones
7–10
Layer
Herbaceous
Lifespan
Perennial
Growth
Fast
Guild Roles
Beneficial 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
Antagonistic Plants
Arrow-leaf pond lilyNuphar sagittifolia
Watermilfoil species can inhibit pond lily growth through allelopathic compounds and light competition from dense underwater growth
Blunt-leaved PondweedPotamogeton obtusifoliusWatermilfoil species often outcompete pondweeds through faster growth and potential allelopathic inhibition
Uses
Functions
Water FiltrationOxygenationNutrient CyclingAlgae Control
Edible Parts
Young Shoots
Medicinal Uses
Water Purification
Common Questions
What zones does Red-stem Watermilfoil grow in?
Red-stem Watermilfoil grows in USDA hardiness zones 7 through 10.
What are good companion plants for Red-stem Watermilfoil?
Good companions for Red-stem Watermilfoil include Three-stamen Waterwort, Pygmy Water Lily.
Design guilds with Red-stem Watermilfoil and see companion relationships visually.
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