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Blunt-leaved Pondweed

Potamogeton obtusifolius, Potamogetonaceae

Zones
3–9
Layer
Ground Cover
Lifespan
Perennial
Growth
Fast

Guild Roles

ProducerBeneficial Insect HabitatGround Cover

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

High (established)High (fruiting)High (seedling)

Soil pH

6.5 – 8.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Large-flowered BurheadEchinodorus grandiflorus
Nutrient AccumulationBeneficial Insect Habitat
Northern Bur-reedSparganium hyperboreum
Beneficial Insect HabitatWind Protection

Antagonistic Plants

Arrow-leaf pond lilyNuphar sagittifolia

Large floating leaves of pond lily shade out submerged pondweed species

Red-stem WatermilfoilMyriophyllum propinquum

Watermilfoil species often outcompete pondweeds through faster growth and potential allelopathic inhibition

Uses

Functions

Water FiltrationOxygen ProductionHabitatErosion Control

Edible Parts

TubersSeeds

Common Questions

What zones does Blunt-leaved Pondweed grow in?

Blunt-leaved Pondweed grows in USDA hardiness zones 3 through 9.

What are good companion plants for Blunt-leaved Pondweed?

Good companions for Blunt-leaved Pondweed include Large-flowered Burhead, Northern Bur-reed.

Design guilds with Blunt-leaved Pondweed and see companion relationships visually.

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