North America Native Plant

Meadow Evening Primrose

Botanical name: Oenothera pilosella sessilis

USDA symbol: OEPIS

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Oenothera sessilis (Pennell) Munz (OESE2)   

Meadow Evening Primrose: A Rare Gem for Southern Native Plant Gardens If you’re passionate about native plants and live in the South, you might want to get acquainted with meadow evening primrose (Oenothera pilosella sessilis). This charming little wildflower is a true regional treasure that deserves a spot in more ...

Rare plant alert!

Region: Arkansas

Status: S5T2: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Region: Arkansas

Meadow Evening Primrose: A Rare Gem for Southern Native Plant Gardens

If you’re passionate about native plants and live in the South, you might want to get acquainted with meadow evening primrose (Oenothera pilosella sessilis). This charming little wildflower is a true regional treasure that deserves a spot in more native plant gardens—though with some important considerations we’ll discuss.

Meet the Meadow Evening Primrose

Meadow evening primrose is a perennial forb, which is just a fancy way of saying it’s an herbaceous plant that comes back year after year without any woody stems. You might also see it listed under its synonym, Oenothera sessilis, in older botanical references. As part of the evening primrose family, this plant has some delightful surprises up its sleeve.

Where You’ll Find It Growing Wild

This native beauty calls the south-central United States home, naturally occurring in Arkansas, Louisiana, and Texas. It’s perfectly adapted to the climate and growing conditions of these states, making it an excellent choice for gardeners in USDA hardiness zones 7-9.

Why Consider Growing Meadow Evening Primrose?

There are several compelling reasons to include this plant in your native garden:

  • True regional native: It’s genuinely native to the lower 48 states, supporting local ecosystems
  • Pollinator magnet: The evening-opening flowers attract night-flying moths and other nocturnal pollinators
  • Low maintenance: Once established, it’s quite drought tolerant and requires minimal care
  • Conservation value: Growing native plants helps preserve local biodiversity

Important Rarity Considerations

Here’s something crucial to know: Meadow evening primrose has a conservation status that requires our attention. It’s ranked as S2 in Arkansas, meaning it’s imperiled in that state. The global conservation status is S5T2, indicating it needs monitoring. This rarity makes it even more special, but it also means we need to be responsible about how we source and grow it.

If you decide to grow meadow evening primrose, please ensure you’re obtaining seeds or plants from reputable native plant nurseries that practice ethical collection methods. Never collect from wild populations, especially in Arkansas where it’s considered imperiled.

Growing Meadow Evening Primrose Successfully

The good news is that this plant isn’t particularly fussy once you understand its preferences:

  • Sunlight: Provide full sun for best flowering
  • Soil: Well-drained soils are essential; it tolerates various soil types
  • Water: Drought tolerant once established, but benefits from occasional watering during extended dry periods
  • Planting: Direct seeding in fall often works well, mimicking natural germination cycles

Perfect Garden Companions

Meadow evening primrose shines in native plant gardens, prairie restorations, and wildflower meadows. Its low-growing, rosette form makes it an excellent ground cover option, and it pairs beautifully with other native grasses and wildflowers from its region. Consider planting it alongside other Texas, Louisiana, or Arkansas natives for an authentic regional display.

The Evening Show

Here’s where the magic happens: true to its evening primrose heritage, the small yellow flowers typically open in the evening hours. This creates a wonderful opportunity to enjoy your garden during cooler evening hours while supporting the often-overlooked community of night-flying pollinators.

Is Meadow Evening Primrose Right for Your Garden?

This plant is an excellent choice if you:

  • Garden in Arkansas, Louisiana, or Texas
  • Want to support native biodiversity
  • Appreciate subtle, naturalistic beauty
  • Enjoy evening garden experiences
  • Can source plants or seeds responsibly

However, given its rarity status, this might not be the best choice for large-scale plantings or if you can’t verify ethical sourcing.

A Plant Worth Preserving

Meadow evening primrose represents something special in the native plant world—a regional endemic that connects us to the unique natural heritage of the south-central United States. By growing it responsibly in our gardens, we’re not just creating beautiful landscapes; we’re participating in conservation efforts that help ensure future generations can enjoy this lovely native wildflower.

Remember, every native plant we grow is a small victory for biodiversity, and with rare species like meadow evening primrose, we have the opportunity to be true stewards of our regional flora.

Meadow 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 pilosella Raf. - meadow 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