Oenothera biennis Plant Data Family Name: Onagraceae Common Name: evening primrose Other Name(s): Oenothera biennis Hardiness Zones: Zone 4: (-34 to -29 C) Plant Code: oebi Fruit Color: Brown, Flowering Time: Jun, Jul, Aug, Sep, Flowering Color: Yellow, Leaf Form: Simple, Leaf Arrangement: Alternate, Basal, Leaf Shape: Lanceolate, Oblong, PlantSomething BC Garden Centre Listings No members have selected this plant.