Image of Oenothera parviflora
image of Flowering plant
Oenothera parviflora
Small-flowered evening-primrose
Onagre parviflore

Obsolete Names

  • least evening-primrose
  • northern evening-primrose
  • onagre à petites fleurs
  • onagre muriquée
No seeds available for this plant.

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

Bloom colour: Yellow Bloom period: July - October
Max Height: 4.0 feet
Max Width: 2.0 feet
Light condition:
Full sun More than 6 hours of direct sun a day
Soil conditions:
Moisture dry Tolerates dry soil condition
Lifespan : Biennial
Gardener Experience:
does not spread Does not spread uncontrollably
plant germinate easy Easy to germinate
Landscape uses:
rock garden Suitable for rock gardens
shoreline_rehab Suitable for shoreline rehabilitation
container suitable Suitable for container garden
school garden Suitable for school gardens
foot traffic tolerance medium Tolerates medium foot traffic
Ecological Benefits: No ecological benefits information available.
Tolerates:
juglone Tolerant Tolerates juglone conditions

Plant Distribution

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Oenothera parviflora
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent
View taxonomy on Canadensys

View on iNaturalist

Thrives in Ecozones

  • Atlantic Maritime
  • Ecozone-Boreal Shield
  • Ecozone-Boreal_Plains
  • Atlantic_Maritime
  • Ecozone-Prairies

Butterflies Supported by Oenothera parviflora

  • Eudryas unio (Pearly Wood Nymph)
  • Hyles lineata (White lined Sphinx)
  • Mompha eloisella (Red streaked Mompha)
  • Schinia florida (Primrose)

Bees Supported by Oenothera parviflora

  • Lasioglossum oenotherae

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 anytime
  • Stratification duration: 45 days
  • Self-seeding

Harvesting Information

  • Harvesting indicator: Pods are brown, seeds are dark, and crisp, and little stem connecting the pod to the main stem is brown (not green)
  • Harvesting mean: Cut stem (including pods), let air dry in paper bag, then shake seeds off after a few days
  • 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: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity