How much sun does Alpine Pondweed need?

Alpine Pondweed grows best in part shade conditions.

When does Alpine Pondweed bloom?

Alpine Pondweed blooms in June, July, August, and September.

Where is Alpine Pondweed native?

Alpine Pondweed (Potamogeton alpinus) is native to CA, CO, ID, MA and 17 more states, per vouchered herbarium specimen records and regional native plant society lists.

Is Alpine Pondweed HOA-friendly?

Alpine Pondweed takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Alpine Pondweed

Name: Pollinator Patch
Author: Pollinator Patch

Potamogeton alpinus

Last reviewed: August 2026

Toxicity unknown

Alpine Pondweed (Potamogeton alpinus) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

high

Size

6"–36" H × 6"–24" W

Bloom

Jun, Jul, Aug, Sep

Native to

CA, CO, ID, MA and 17 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 459 programs across 44 states, each with a link to the provider and the date we last checked it.

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Picture natives in your own yard

Upload a photo of your yard and Patch Vision shows a rendering of it planted with natives for your region, like Alpine Pondweed.

Try it with your yard

Browse plants for this ecoregion

Northwestern Forested Mountains North American Deserts Southern Rockies Northern Lakes and Forests North Central Hardwood Forests Driftless Area Northeastern Highlands Northern Allegheny Plateau Acadian Plains and Hills Eastern Great Lakes Lowlands

Alpine pondweed is an aquatic perennial that grows submerged or floating in ponds, lakes, and slow-moving streams. This native water plant produces small spikes of inconspicuous flowers above the water surface during summer months. It requires consistently wet conditions and cannot survive in typical garden soil.

In an HOA neighborhood

Alpine Pondweed takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Requires permanent water feature
Not suitable for typical residential landscaping
May appear unkempt to neighbors unfamiliar with aquatic plants

Wildlife value

This aquatic plant provides habitat for waterfowl and supports aquatic insects. It offers cover and food sources for fish and other pond wildlife.

Common questions

How much sun does Alpine Pondweed need?: Alpine Pondweed grows best in part shade conditions.
When does Alpine Pondweed bloom?: Alpine Pondweed blooms in June, July, August, and September.
Where is Alpine Pondweed native?: Alpine Pondweed (Potamogeton alpinus) is native to CA, CO, ID, MA and 17 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Alpine Pondweed HOA-friendly?: Alpine Pondweed takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Alpine Pondweed? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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