Botanical atlas
Evening Primrose
Oenothera biennis
Long before evening primrose oil lined pharmacy shelves, Native American nations from the Iroquois to the Ojibwe were already using this modest roadside plant. The boiled roots were eaten as a peppery vegetable, the young leaves brewed into a simple tea for minor complaints, and a poultice of the pounded root was pressed onto bruises and sore joints. Settlers picked up the habit and added their own name for it, King's Cure-All, a nod to how many household ailments it was called upon to soothe. It was the strange nighttime habit of the flower, opening in a matter of minutes as the sun went down, that first caught the eye of herbalists and gave the plant its lasting name.
In tradition.
Long before evening primrose oil lined pharmacy shelves, Native American nations from the Iroquois to the Ojibwe were already using this modest roadside plant. The boiled roots were eaten as a peppery vegetable, the young leaves brewed into a simple tea for minor complaints, and a poultice of the pounded root was pressed onto bruises and sore joints. Settlers picked up the habit and added their own name for it, King's Cure-All, a nod to how many household ailments it was called upon to soothe. It was the strange nighttime habit of the flower, opening in a matter of minutes as the sun went down, that first caught the eye of herbalists and gave the plant its lasting name.
Traditional preparations.
A gentle infusion traditionally sipped for occasional stomach upset and as a soothing evening cup.
Steep 1 teaspoon of dried evening primrose leaf in 250 ml of just-boiled water for 8 to 10 minutes, then strain.
A soft, folk-style skin oil made by steeping the fresh blossoms, applied traditionally to dry or irritated patches of skin.
Pack a small clean jar loosely with fresh evening primrose flowers, cover completely with a carrier oil such as sweet almond, and let it sit in a warm, sunny spot for 2 weeks before straining.
Safety.
Evening primrose oil can cause mild stomach upset and may thin the blood, so use caution with blood-thinning medication and stop before surgery. It has also been linked to a lower seizure threshold in people taking certain antipsychotic medications, and it's best avoided in pregnancy unless a doctor advises otherwise.
Our sister app HerbLens identifies evening primrose from a photo and keeps its full botanical portrait: growing guide, harvest notes, and look-alike warnings.
View on HerbLensAsk HerbSense how evening primrose is traditionally used and what to know before trying anything at home.
Ask about Evening PrimroseHerbSense shares traditional herbal knowledge for education, not diagnosis or treatment. Herbs can interact with medicines and conditions. Speak with your doctor before acting on anything here, and seek care promptly for anything severe, sudden, or worsening.