Toxic Plant Inconnu - Inadequate information on toxicity found.
Image of Persicaria pensylvanica
Source: Bibliothèque Université Laval

Plant Names

image of Plante à fleurs
Persicaria pensylvanica
Pennsylvania Smartweed
Renouée de Pennsylvanie

Synonyms

Pennsylvania knotweed
pink knotweed
pinkweed

Plant Characteristics

Couleur de floraison: Rose Bloom Period: Jun - Oct
Hauteur max: 4,0 feet
Max Width: 2,0 feet
Light Condition:
Full sun Plus de 6 heures d'ensoleillement par jour
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan: Annuel des plantes qui ont une durée de vie d'un an
Gardener Experience:
plant germinate easy Facile à germer
plant self seeding Self-seeding
Landscape Uses:
wetland garden Souhaitable dans les jardins de zone humide
shoreline_rehab Suitable for shoreline rehabilitation
school garden Suitable for school gardens
Ecological Benefits: No ecological benefits information available.
Tolerates:
Limestone Tolerant Tolerates limestone conditions
Acidic Soil Tolerant Tolerates acidic soil conditions
Transplantation Tolerant Tolerates transplantation
Special Features and Considerations:

Seed and plant distribution status

No seeds available for this plant.
Nous acceptions les semences de cette plante

Faits intéressants

Pennsylvania Smartweed produces slender spikes of small pink flowers throughout summer. It is more naturally suited to informal or naturalized areas than highly maintained flower borders. It may appear spontaneously in damp garden areas and is best suited to naturalized plantings rather than formal beds. It can tolerate disturbed and compacted soils and can become abundant where soil remains wet. While it is easy to grow it is not necessarily a good choice where a tidy appearance is important.

Plant Location

Native to Ottawa region: Oui

Distribution according to VASCAN

Distribution: Persicaria pensylvanica
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent

Thrives in Ecozones

  • Maritime de l'Atlantique
  • Plaines boréales
  • Plaines à forêts mixtes

Ecological Benefits

Butterflies Supported by Persicaria pensylvanica

No butterfly data available for this plant.

Specialized Bees Supported by Persicaria pensylvanica

No bee data available for this plant.

Complementary Plants

Substitute For Non-Native Plants

  • Lamium (Dead nettle)
  • Buddleia (Butterfly Bush)
  • Lamium galeobdolon (Yellow Archangel)

Sowing Information

Download Seed Envelope Labels (PDF)
  • Sowing depth: Surface sow
  • Sow by February
  • Stratification duration: 60 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: August
  • Harvesting indicator:
    • Seeds are dark and dry, and easily fall off when you gently pull them off
  • Harvesting:
    • Utiliser la main pour détacher de la tige principale
  • Seed viability test:
    • Pas de test requis avant le don
  • Packaging measure: 1 rounded 1/8 teaspoon
  • Seed storage:
    • Sécher à l'air dans un sac en papier ou contenant ouvert, pour quelques jours jusqu'à sec
    • Secouer de temps à autre pour prévenir la moisissure
  • Cultivar: No, you can donate without knowing the source as there are only straight species
  • Remove non-seed material
  • No harvesting video available at this time.

Toxicity Notes

Inadequate information on toxicity found.