North America Native Plant

Hooker’s Evening Primrose

Botanical name: Oenothera elata hirsutissima

USDA symbol: OEELH

Life cycle: biennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Oenothera biennis L. var. hirsutissima A. Gray ex S. Watson (OEBIH3)  âš˜  Oenothera elata Kunth var. hirsutissima (A. Gray ex S. Watson) Cronquist (OEELH3)  âš˜  Oenothera elata Kunth ssp. texensis W. Dietr. & W.L. Wagner (OEELT)  âš˜  Oenothera hookeri Torr. & A. Gray var. angustifolia R.R. Gates (OEHOA2)  âš˜  Oenothera hookeri Torr. & A. Gray ssp. angustifolia (R.R. Gates) Munz (OEHOA3)  âš˜  Oenothera hookeri Torr. & A. Gray ssp. grisea (Bartlett) Munz (OEHOG)  âš˜  Oenothera hookeri Torr. & A. Gray var. hewettii (Cockerell) Cockerell (OEHOH2)  âš˜  Oenothera hookeri Torr. & A. Gray var. hirsutissima (A. Gray ex S. Watson) Munz (OEHOH3)  âš˜  Oenothera hookeri Torr. & A. Gray ssp. hirsutissima (A. Gray ex S. Watson) Munz (OEHOH4)  âš˜  Oenothera hookeri Torr. & A. Gray ssp. hewettii Cockerell (OEHOH5)  âš˜  Oenothera hookeri Torr. & A. Gray ssp. ornata (A. Nelson) Munz (OEHOO)  âš˜  Oenothera hookeri Torr. & A. Gray var. ornata (A. Nelson) Munz (OEHOO2)  âš˜  Oenothera hookeri Torr. & A. Gray ssp. venusta (Bartlett) Munz (OEHOV)  âš˜  Oenothera ornata (A. Nelson) Rydb. (OEOR2)  âš˜  Oenothera simsiana auct. non Ser. (OESI2)   

Hooker’s Evening Primrose: A Tall, Native Beauty for Your Wildflower Garden Looking for a native plant that puts on a spectacular evening show? Meet Hooker’s evening primrose (Oenothera elata hirsutissima), a towering wildflower that transforms your garden into a magical nighttime display. This impressive native forb brings both height and ...

Hooker’s Evening Primrose: A Tall, Native Beauty for Your Wildflower Garden

Looking for a native plant that puts on a spectacular evening show? Meet Hooker’s evening primrose (Oenothera elata hirsutissima), a towering wildflower that transforms your garden into a magical nighttime display. This impressive native forb brings both height and drama to natural landscapes while supporting important pollinators.

What Makes Hooker’s Evening Primrose Special

Hooker’s evening primrose is a true showstopper, reaching heights of 3 to 8 feet with bright yellow, four-petaled flowers that open as the sun sets. As a biennial or short-lived perennial, this forb (a non-woody flowering plant) creates stunning vertical interest in any native plant garden.

This plant is proudly native to the lower 48 states, making it an excellent choice for gardeners wanting to support local ecosystems and reduce their environmental footprint.

Where You’ll Find It Growing Wild

Hooker’s evening primrose has an impressive natural range across the western and central United States. You can find this hardy native growing in Arizona, California, Colorado, Idaho, Kansas, Montana, Nevada, New Mexico, Oklahoma, Oregon, Texas, Utah, Washington, and Wyoming.

Perfect Spots for Your Garden

This tall evening primrose shines brightest in:

  • Prairie and wildflower gardens
  • Naturalized landscape areas
  • Xeriscaping projects
  • Background borders where height is needed
  • Native plant restoration projects

Its impressive height makes it perfect as a backdrop plant, while its evening-blooming habit adds a unique dimension to gardens designed for evening enjoyment.

A Pollinator’s Paradise

Here’s where Hooker’s evening primrose really earns its keep – it’s a magnet for evening pollinators! The large, fragrant flowers open just as day-shift pollinators are calling it quits, welcoming sphinx moths, other night-flying moths, and various evening-active insects. By planting this native beauty, you’re supporting the often-overlooked nighttime pollinator community.

Growing Conditions and Care

One of the best things about Hooker’s evening primrose is how easy-going it is. This tough native thrives in USDA hardiness zones 4-9, making it suitable for most of the continental United States.

Light: Full sun is best, though it can tolerate some light shade

Soil: Well-draining soil is essential – this plant doesn’t like wet feet

Water: Drought tolerant once established, making it perfect for water-wise gardens

Maintenance: Refreshingly low-maintenance once settled in

Planting and Care Tips

Getting started with Hooker’s evening primrose is straightforward:

  • Plant in spring after the last frost
  • Choose a sunny location with good drainage
  • Space plants adequately – they can get quite wide as well as tall
  • Water regularly the first season to help establish roots
  • After establishment, let natural rainfall do most of the work

One thing to keep in mind: this enthusiastic native can self-seed readily. While this is great for naturalizing large areas, you may want to deadhead spent flowers if you prefer more control over where it spreads.

Why Choose This Native Beauty

Hooker’s evening primrose offers the perfect combination of dramatic beauty, ecological value, and low-maintenance growing. Its native status means it’s perfectly adapted to local conditions, while its evening-blooming habit brings a unique element to your garden that most plants can’t match.

Whether you’re creating a prairie garden, adding height to a native plant border, or simply want to support nighttime pollinators, this impressive evening primrose delivers on all fronts. Plus, there’s something truly magical about watching those bright yellow blooms unfurl as twilight settles over your garden.

Hooker’s 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 elata Kunth - Hooker's 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