North America Native Plant

Birdcage Evening Primrose

Botanical name: Oenothera deltoides deltoides

USDA symbol: OEDED4

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Oenothera deltoides Torr. & Frém. var. cineracea (Jeps.) Munz (OEDEC3)  âš˜  Oenothera deltoides Torr. & Frém. var. typica Munz (OEDET)  âš˜  Oenothera kleinii W.L. Wagner & S. Mill. (OEKL)   

Birdcage Evening Primrose: A Delightful Desert Native for Water-Wise Gardens If you’re looking for a charming desert wildflower that practically takes care of itself, meet the birdcage evening primrose (Oenothera deltoides deltoides). This unassuming little native has a few tricks up its sleeve that make it a wonderful addition to ...

Rare plant alert!

Region: Conservation status by state

Status: SUSHQ: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Possibly Extinct: Known only from historical occurrences. Still some hope of rediscovery ⚘ Currently unrankable due to lack of information or due to substantially conflicting information about status or trends. ⚘

Birdcage Evening Primrose: A Delightful Desert Native for Water-Wise Gardens

If you’re looking for a charming desert wildflower that practically takes care of itself, meet the birdcage evening primrose (Oenothera deltoides deltoides). This unassuming little native has a few tricks up its sleeve that make it a wonderful addition to water-wise landscapes across the American Southwest.

What Makes Birdcage Evening Primrose Special?

Don’t let the humble appearance fool you – this native forb puts on quite a show when conditions are right. The birdcage evening primrose produces delicate white, four-petaled flowers that open in the evening (hence the name!). As the flowers age, they blush to a lovely pink color, creating a subtle two-toned display in your garden.

As a true native of the lower 48 states, this evening primrose has evolved alongside local wildlife and ecosystems for thousands of years. You’ll find it naturally growing across Arizona, California, Colorado, Nevada, and Utah, where it’s perfectly adapted to the challenging desert environment.

Why Choose This Native Beauty?

There are plenty of reasons to fall in love with birdcage evening primrose:

  • Ultimate drought tolerance: Once established, this desert native requires virtually no supplemental watering
  • Pollinator magnet: Evening-blooming flowers attract fascinating night-flying moths and other nocturnal pollinators
  • Low maintenance: This is a plant that truly thrives on neglect
  • Native ecosystem support: Choosing natives helps support local wildlife and maintains ecological balance
  • Self-sufficient: The plant readily self-seeds, creating natural colonies over time

Perfect Garden Settings

Birdcage evening primrose shines in specific garden styles:

  • Desert gardens: A natural fit alongside cacti, agaves, and other desert plants
  • Xeriscapes: Perfect for water-conserving landscape designs
  • Rock gardens: Thrives in the well-draining conditions rock gardens provide
  • Native plant gardens: An authentic addition to regional native plantings
  • Naturalized areas: Great for creating wild, meadow-like spaces

Growing Conditions Made Simple

This desert dweller has pretty specific needs, but they’re easy to meet if you live in the right climate:

  • Sunlight: Full sun is absolutely essential
  • Soil: Well-draining sandy or rocky soil – heavy clay is a no-go
  • Water: Minimal once established; overwatering is more dangerous than drought
  • Climate zones: Hardy in USDA zones 8-10

Planting and Care Tips

Growing birdcage evening primrose successfully is all about mimicking its natural desert habitat:

  • When to plant: Direct seed in fall for best germination rates
  • Soil preparation: Ensure excellent drainage – add sand or gravel if your soil retains water
  • Watering: Water lightly during establishment, then back off completely
  • Fertilizing: Skip it! Desert natives prefer lean, unfertilized soil
  • Maintenance: Virtually none required – just enjoy the show

A Word About Its Growth Pattern

Birdcage evening primrose can be both an annual and perennial, depending on growing conditions. As a forb (a non-woody flowering plant), it stays relatively low to the ground and spreads naturally through self-seeding. Don’t expect a towering specimen – this plant’s beauty lies in its delicate flowers and ability to create naturalized colonies over time.

Is This Plant Right for Your Garden?

Birdcage evening primrose is perfect if you:

  • Live in the southwestern United States
  • Want to support native ecosystems and pollinators
  • Prefer low-maintenance, drought-tolerant plants
  • Enjoy evening garden activities (when the flowers open)
  • Have well-draining soil and plenty of sunshine

However, it might not be the best choice if you live outside its natural range, prefer lush, green landscapes, or have heavy, poorly-draining soil.

Final Thoughts

Birdcage evening primrose proves that native plants can be both beautiful and practical. While it may not be the showiest plant in your garden, its evening blooms, drought tolerance, and ecological benefits make it a valuable addition to any desert or water-wise landscape. Plus, there’s something magical about a garden that comes alive at dusk with the gentle opening of evening primrose flowers – it’s nature’s own twilight show!

Birdcage Evening Primrose

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Myrtales

Family

Onagraceae Juss. - Evening Primrose family

Genus

Oenothera L. - evening primrose

Species

Oenothera deltoides Torr. & Frém. - birdcage evening primrose

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA