North America Native Plant

Little Evening Primrose

Botanical name: Oenothera perennis

USDA symbol: OEPE

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to the lower 48 states âš˜ Non-native, reproduces and persists in the wild in St. Pierre and Miquelon  

Synonyms: Kneiffia perennis (L.) Pennell (KNPE)  âš˜  Kneiffia pumila (L.) Spach (KNPU)  âš˜  Oenothera perennis L. var. rectipilis (S.F. Blake) S.F. Blake (OEPER)  âš˜  Oenothera perennis L. var. typica Munz (OEPET)   

Little Evening Primrose: A Charming Native Wildflower for Easy-Care Gardens Don’t let the name fool you – the little evening primrose (Oenothera perennis) actually opens its cheerful yellow blooms during the day! This delightful native wildflower might be small in stature, but it packs a big punch when it comes ...

Little Evening Primrose: A Charming Native Wildflower for Easy-Care Gardens

Don’t let the name fool you – the little evening primrose (Oenothera perennis) actually opens its cheerful yellow blooms during the day! This delightful native wildflower might be small in stature, but it packs a big punch when it comes to adding color and supporting pollinators in your garden.

What Makes Little Evening Primrose Special?

Little evening primrose is a perennial forb – basically a non-woody plant that comes back year after year. Unlike its taller evening primrose cousins that save their show for sunset, this charming species treats us to bright yellow, four-petaled flowers throughout the daylight hours. The flowers are relatively small but appear in abundance, creating a sunny carpet effect that’s simply irresistible.

You might also encounter this plant under its scientific name Oenothera perennis, or some of its synonyms including Kneiffia perennis. But whatever you call it, this little beauty deserves a spot in more native plant gardens.

Where Does It Call Home?

Little evening primrose is a true North American native, naturally occurring across a impressive range that spans from Canada down through much of the United States. You’ll find it growing wild from British Columbia to Newfoundland in Canada, and throughout most of the eastern and central United States, from Maine down to Georgia and west to states like Montana and Nebraska.

Why Plant Little Evening Primrose?

There are plenty of reasons to welcome this native wildflower into your garden:

  • Pollinator magnet: The bright yellow flowers attract bees, butterflies, and other beneficial insects, providing them with nectar and pollen
  • Low maintenance: Once established, it’s quite drought tolerant and requires minimal care
  • Native plant benefits: As a native species, it supports local ecosystems and wildlife
  • Adaptable: With a facultative wetland status, it can thrive in both wet and dry conditions
  • Long blooming season: Enjoy flowers from late spring through summer
  • Ground cover potential: Its low-growing habit makes it perfect for filling in bare spots

Perfect Garden Spots

Little evening primrose shines in several garden settings:

  • Wildflower meadows and prairie gardens
  • Naturalized areas where you want a low-maintenance ground cover
  • Pollinator gardens and butterfly gardens
  • Rock gardens or areas with poor soil
  • Edges of rain gardens or bioswales

Growing Conditions and Care

One of the best things about little evening primrose is how easy-going it is. Here’s what it prefers:

  • Sunlight: Full sun to partial shade (though it blooms best with plenty of sun)
  • Soil: Adaptable to various soil types, from sandy to clay
  • Water: Drought tolerant once established, but appreciates regular water during its first season
  • Climate: Hardy in USDA zones 4-8

Planting and Care Tips

Getting little evening primrose established in your garden is refreshingly straightforward:

  • Plant seeds in fall or early spring – they need a cold period to germinate properly
  • Scatter seeds directly where you want them to grow, as they don’t love being transplanted
  • Keep soil consistently moist until seedlings are established
  • Once mature, these plants can spread by underground rhizomes, so give them room to naturalize
  • Deadhead spent flowers if you want to prevent self-seeding, or leave them if you’d like more plants next year
  • Cut back the entire plant after flowering ends to keep it tidy

A Few Things to Keep in Mind

While little evening primrose is generally well-behaved, it can self-seed enthusiastically if you let it. This isn’t necessarily a bad thing – many gardeners love how it fills in bare spots and creates natural-looking drifts. However, if you prefer more control over where it grows, simply remove the spent flower heads before seeds mature.

The plant can also spread slowly by underground rhizomes, which helps it form nice colonies over time. Again, this is usually considered a feature rather than a bug, especially in naturalized settings.

The Bottom Line

Little evening primrose proves that good things really do come in small packages. This native wildflower offers cheerful blooms, supports pollinators, and asks for very little in return. Whether you’re creating a prairie garden, need a low-maintenance ground cover, or simply want to add more native plants to your landscape, little evening primrose is definitely worth considering. Your local pollinators will thank you, and you’ll love how this little charmer brightens up your garden with minimal fuss.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Atlantic and Gulf Coastal Plain

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Eastern Mountains and Piedmont

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Great Plains

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Midwest

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Northcentral & Northeast

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Western Mountains, Valleys, and Coast

FAC

Facultative - Plants with this status can occur in wetlands and non-wetlands

Little 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 perennis L. - little 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