Oenothera biennis
Common evening-primrose
Onagre bisannuelle
Obsolete Names
- hoary evening-primrose
- king's cureall
- yellow evening-primrose
- herbe aux ânes
- onagre de Victorin
No seeds available for this plant.
We are not accepting seeds for this plant at the moment.
Bloom colour: Yellow
Bloom period: June - September
Max Height: 6.0 feet
Max Width: 2.0 feet
Light condition:
More than 6 hours of direct sun a day
More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Tolerates dry soil condition
Tolerates medium soil condition
More than 6 hours of direct sun a day
More than 2 or 3 hours but less than 6 hours of direct sun a day
Tolerates dry soil condition
Tolerates medium soil condition
Lifespan : Biennial
Gardener Experience:
Easy to germinate
Easy to germinate
Landscape uses:
Suitable for rock gardens
Suitable for shoreline rehabilitation
Suitable for container garden
Tolerates light foot traffic
Suitable for rock gardens
Suitable for shoreline rehabilitation
Suitable for container garden
Tolerates light foot traffic
Ecological Benefits:
Supports birds
Supports pollinators
Keystone species
Supports birds
Supports pollinators
Keystone species
Tolerates:
Tolerates salt conditions
Deer resistant
Rabbit resistant
Tolerates limestone conditions
Tolerates boulevard garden conditions
Tolerates juglone conditions
Tolerates salt conditions
Deer resistant
Rabbit resistant
Tolerates limestone conditions
Tolerates boulevard garden conditions
Tolerates juglone conditions
Plant Distribution
Native to Ottawa region: Yes
Thrives in Ecozones
- Atlantic Maritime
- Taiga Shield
- Ecozone-Mixed Wood Plain
- Ecozone-prairies
- Ecozone-Montane Cordillera
- Hudson Plain
- Ecozone-Boreal Shield
- Taiga Plains
- Boreal Cordillera
- Ecozone-Taiga_Shield
- Atlantic_Maritime
- Ecozone-Pacific_Maritime
- Ecozone-Prairies
- Ecozone-Hudson_Plain
- Ecozone-Taiga_Plains
- Ecozone-Boreal_Cordillera
Butterflies Supported by Oenothera biennis
- Eudryas unio (Pearly Wood Nymph)
- Hyles lineata (White lined Sphinx)
- Mompha eloisella (Red streaked Mompha)
- Schinia florida (Primrose)
Bees Supported by Oenothera biennis
- 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: 0 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