Primrose care tip: make sure to not let them get too hot.' The bigfruit evening primrose from Nature Hills will add stunning burst of yellow to your yard and highly appeal to moths. USDA plant ...

The fragrant yellow flowers of evening primrose (Oenothera biennis) bloom each evening at sunset and close during the day. These plants make an excellent backdrop for a moon garden.

The evening primrose is a plant that’s originally from North America. It also grows in Europe. It gets its name from the plant’s yellow flowers, which bloom in the evening.

Yosemite National Park Features Stunning Wildflowers, Including the Must-See Nightly Bloom of Hooker's Evening Primrose ...

Evening primrose oil (EPO), is a member of the willow herb family, whose yellow flowers open during the evening and resemble the primrose plant, hence its name. Accidentally brought to Europe from ...

The evening primrose name describes how the yellow flowers close during the daytime. (Photo credit: Getty Images) EPO is sold as a dietary supplement at grocery stores, pharmacies, and online.

Primrose oil comes from the evening primrose plant, which is a yellow flower that's native to North and South America. It also grows in parts of Asia and throughout Europe.