Q: My son gave me a plant called evening primrose this past spring. He got it from a neighbor. It blooms yellow over about 6 weeks, but each flower only lasts one evening and then dies.

Understanding the Context

Hummingbird ... If it is a native wildflower it must be good? Not always. The White Evening Primrose (Oenothera speciosa), commonly known as the Pink Evening Primrose or Pink Ladies, is a low-growing herbaceous, ...

Key Insights

The research, involving primroses and hawk moths, suggests that air pollution could be interfering with plant reproduction. A white-lined sphinx pollinating a pale evening primrose flower.Credit...Ron ... What Is Evening Primrose Oil? Evening primrose oil (EPO) comes from the seeds of a wildflower called Oenothera biennis. The seed oil is rich in fatty acids called linoleic acid (LA) and ...

Final Thoughts

Tom Oder is a writer, editor, and communication expert who specializes in sustainability and the environment with a sweet spot for urban agriculture. The bright yellow flowers of the evening primrose ... CU Boulder News & Events: Evening primrose flowers at dusk, fades in the day