PatternBaseIllinois Pondweed
Potamogeton illinoensis, Potamogetonaceae
Zones
3–9
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 – 8.5
Tolerances
Drought
Frost
Heat
Pest Resistance
Disease Resist.
Companion Plants
Antagonistic Plants
Orange SnowflakeNymphoides hydrophylla
Floating leaves of Orange Snowflake shade out submerged pondweed species
Leafy PondweedPotamogeton foliosusCongeneric pondweed species compete for similar submerged habitat resources
Red Stem MilfoilMyriophyllum mattogrossenseRed stem milfoil allelopathic compounds can suppress growth of native pondweed species
Uses
Functions
Water FiltrationOxygenationHabitatErosion Control
Edible Parts
SeedsTubers
Common Questions
What zones does Illinois Pondweed grow in?
Illinois Pondweed grows in USDA hardiness zones 3 through 9.
What are good companion plants for Illinois Pondweed?
Good companions for Illinois Pondweed include Gibbous Duckweed.
Design guilds with Illinois Pondweed and see companion relationships visually.
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