Image of Alisma triviale
Source: Gilles Ayotte
Alisma triviale

Plant Names

image of Flowering plant
Alisma triviale
Northern Water-plantain
Alisma commun

Plant Characteristics

Bloom Colour: White Bloom Period: Jul - Aug
Max Height: 3.0 feet
Max Width: 2.0 feet
Light Condition:
Full sun More than 6 hours of direct sun a day
Soil conditions:
Moisture wet Tolerates wet soil condition
Lifespan: Perennial plants that will come back year after year
Gardener Experience:
plant germinate easy Easy to germinate
plant self seeding Self-seeding
Landscape Uses:
wetland garden Suitable for wetland garden
rain garden Suitable for rain gardens
Ecological Benefits: No ecological benefits information available.
Tolerates:
Special Features and Considerations:

Seed and plant distribution status

No seeds available for this plant.
We currently accept seeds for this plant

Fun Facts

Northern Water-plantain is a clump-forming perennial that has airy clusters of small white flowers in the summer. It grows in moist to wet ditches and in shallow water of marshes, lakes and streams. An attractive plant for garden ponds, rain gardens, and stream margins. It can tolerate part-sun conditions but may not produce as many flowers.

Plant Location

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Alisma triviale
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent

Thrives in Ecozones

  • Taiga Plains
  • Atlantic Maritime
  • Taiga Shield
  • Boreal Plains
  • Montane Cordillera
  • Prairies
  • Taiga Cordillera
  • Boreal Shield
  • Boreal Cordillera
  • Pacific Maritime
  • Mixed Wood Plains

Ecological Benefits

Butterflies Supported by Alisma triviale

No butterfly data available for this plant.

Specialized Bees Supported by Alisma triviale

No bee data available for this plant.

Complementary Plants

  • No complementary plants found.

Substitute For Non-Native Plants

No substitute plant data available for this plant.

Sowing Information

Download Seed Envelope Labels (PDF)
  • Sowing depth: Sow just below surface
  • Sow by March
  • Stratification duration: 30 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: August
  • Harvesting indicator:
    • Pods are brown and crisp and starting to open
    • Seeds are dark and tiny stem attaching to the main stem is brown
    • Seeds easily fall off pod when shaken
    • Little stem connecting the pod to the main stem is brown (not green)
  • Harvesting:
    • Shake seed head in paper bag
  • Seed viability test:
    • None
  • Packaging measure: None
  • Seed storage:
    • Air Dry in paper bag or open container, for a few days until crisp
    • Shake seeds to move them once in a while to prevent molding
  • Cultivar: None
  • No harvesting video available at this time.