Oenothera perennis appear as small sundrops that are less showy than Southern Sundrops (Oenothera fruticosa). They are easy to identify from the nodding tip of the stem and club-shaped fruit. They generally appear in drier locations, like dry, sandy and rocky areas, but they require adequate annual moisture to persist.

It produces cheerful yellow flowers throughout summer and tolerates hot, dry conditions. Excellent drought-tolerant plant that is great for dry sunny gardens, and is a good choice for beginner native gardeners.

Unlike many evening primroses, this species spreads gradually by underground rhizomes, forming small colonies. It is not considered invasive but may slowly expand where conditions are ideal. It requires little care and does not need pruning.

Flowers attract native bees, butterflies, and moths. It supports moth caterpillars and provides seeds for small birds.