Trumpet Evening Primrose
Oenothera jamesii
Last reviewed: June 2026
Light
full sun
Water
medium
Size
48"–72" H × 24"–36" W
Bloom
Jun, Jul, Aug, Sep, Oct, Nov
Native to
KS, OK, TX
Pollinators
butterflies, bees, moths, nectar insects
Browse plants for this ecoregion
Trumpet Evening Primrose is a tall biennial wildflower that produces large, bright yellow trumpet-shaped blooms from summer through fall. This native Texas plant grows 4-6 feet tall with a relatively narrow spread, creating an upright presence in the garden. The flowers open in the evening and attract night-flying pollinators, though they often remain open into the morning hours.
In an HOA neighborhood
Trumpet Evening Primrose takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Height exceeds typical HOA-friendly range
Wildlife value
This plant is excellent for supporting night-flying moths and other nocturnal pollinators with its evening-blooming flowers. During daytime hours, bees, butterflies, and other nectar-seeking insects also visit the blooms.
Common questions
- How much sun does Trumpet Evening Primrose need?
- Trumpet Evening Primrose grows best in full sun conditions.
- When does Trumpet Evening Primrose bloom?
- Trumpet Evening Primrose blooms in June, July, August, September, October, and November.
- Where is Trumpet Evening Primrose native?
- Trumpet Evening Primrose (Oenothera jamesii) is native to KS, OK, TX, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Trumpet Evening Primrose attract?
- Trumpet Evening Primrose draws butterflies, bees, moths, and nectar insects.
- Is Trumpet Evening Primrose HOA-friendly?
- Trumpet Evening Primrose takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Trumpet Evening Primrose fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.