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Sun: Prefers full.

Moisture: Dry to medium-wet

Height: 6' or higher; one plant grown by YNPN manager grew 10'8" in 2020!

Bloom Time: June-September

Bloom Color: Yellow

Genotype: Ypsilanti Township, Washtenaw County.

Indigenous interactions: In the Great Lakes area, the Ojibwa used a poultice of the whole plant on bruises. The Potawatomi used the seeds for an unspecified ailment (Moerman, 1998).


This tall, stately native biennial creates a low rosette in its first year, then sends up a spike of yellow flowers in the second year and flowers, dying in the fall of that year. Reseeds enthusiastically; goldfinches relish the seeds. Attractive in the back of plantings or against a fence. The large taproot helps aerate clay soils.

Evening Primrose has an oligolege, or specialist pollinator, the bee Anthedonia compta. Host plant for the Grape Leaffolder Moth, the Momphid Moth, the Pearly Wood Nymph, and the White-Lined Sphinx. 

Oenothera biennis (Common Evening Primrose)

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