Image of Epilobium ciliatum
image of Flowering plant
Epilobium ciliatum
Northern willowherb
Épilobe cilié

Obsolete Names

  • northern willowherb
  • purple-leaved willowherb
No seeds available for this plant.

We are not accepting seeds for this plant at the moment.

Bloom colour: Pink Bloom period: June - October
Max Height: 2.0 feet
Max Width: 2.0 feet (spreads by rhizome)
Light condition:
Full sun More than 6 hours of direct sun a day
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 : Annual
Gardener Experience:
plant germinate easy Easy to germinate
Landscape uses:
rock garden Suitable for rock gardens
wetland garden Suitable for wetland garden
shoreline_rehab Suitable for shoreline rehabilitation
container suitable Suitable for container garden
school garden Suitable for school gardens
foot traffic tolerance no Does not tolerate foot traffic
Ecological Benefits: No ecological benefits information available.
Tolerates:
limestone Tolerant Tolerates limestone conditions

Plant Distribution

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Epilobium ciliatum
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent
View taxonomy on Canadensys

View on iNaturalist

Thrives in Ecozones

  • Atlantic Maritime
  • Ecozone-Mixed Wood Plain
  • Ecozone-Montane Cordillera
  • Ecozone-Boreal Shield
  • Taiga Plains
  • Boreal Cordillera
  • Atlantic_Maritime
  • Ecozone-Pacific_Maritime
  • Ecozone-Prairies
  • Ecozone-Taiga_Plains
  • Ecozone-Boreal_Cordillera

Butterflies Supported by Epilobium ciliatum

  • Eudryas unio (Pearly Wood Nymph)
  • Hyles lineata (White lined Sphinx)

Bees Supported by Epilobium ciliatum

No bee data available for this plant.

Complementary Plants Plants that grow in similar conditions, that bloom at the same time.

  • No complementary plants found.

Sowing Information

  • Sowing depth: Surface sow
  • Sow before February
  • Stratification duration: 60 days
  • Self-seeding

Harvesting Information

  • Harvesting indicator: Seeds have become fluffy and can be easily removed by shaking on gently pulling off from stem
  • Harvesting mean: Shake seed head in paper bag
  • Seed Viability Test: No test needed before donating
  • Packaging Measure: 1 rounded 1/32 teaspoon
  • Seed Storage: Air Dry in paper bag or open container, for a few days until crisp, shaking seeds to move them once in a while to prevent molding
  • On Cultivar: No, you can donate without knowing the source as there are only straight species