North America Native Plant

Paiute Suncup

Botanical name: Camissonia scapoidea scapoidea

USDA symbol: CASCS3

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Oenothera scapoidea Nutt. ex Torr. & A. Gray (OESC2)  âš˜  Oenothera scapoidea Nutt. ex Torr. & A. Gray var. seorsa (A. Nelson) Munz (OESCS)   

Paiute Suncup: A Charming Native Wildflower for Western Gardens Meet the Paiute suncup (Camissonia scapoidea scapoidea), a delightful little wildflower that’s perfectly suited for gardeners who love low-maintenance native plants with a touch of mystery. This charming annual might be small in stature, but it packs a punch when it ...

Paiute Suncup: A Charming Native Wildflower for Western Gardens

Meet the Paiute suncup (Camissonia scapoidea scapoidea), a delightful little wildflower that’s perfectly suited for gardeners who love low-maintenance native plants with a touch of mystery. This charming annual might be small in stature, but it packs a punch when it comes to adding authentic western character to your landscape.

What Makes Paiute Suncup Special?

The Paiute suncup is a true native of the American West, calling home to ten states across the region: Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming. As a member of the evening primrose family, this little forb has a fascinating quirk—its bright yellow, four-petaled flowers typically open in the evening and stay open through the night, making it a night owl among wildflowers.

You might also encounter this plant listed under its former scientific names, including Oenothera scapoidea, as botanical classifications have evolved over time. But regardless of what you call it, this native gem remains the same dependable, drought-tolerant beauty.

Why Choose Paiute Suncup for Your Garden?

There are several compelling reasons to consider adding Paiute suncup to your native plant collection:

  • Authentic regional character: As a true native, it belongs in western landscapes and supports local ecosystems
  • Drought tolerance: Once established, it thrives with minimal water—perfect for xeriscapes and water-wise gardens
  • Unique blooming habit: Evening-opening flowers create nighttime interest and attract different pollinators than day-blooming plants
  • Low maintenance: As an annual forb, it naturally completes its lifecycle without need for pruning or deadheading
  • Pollinator support: Provides nectar for moths and other nocturnal pollinators often overlooked in garden planning

Garden Design and Landscape Uses

Paiute suncup works beautifully in several garden settings. It’s particularly well-suited for naturalized wildflower meadows, where it can self-seed and create drifts of evening color. In desert and xeriscape gardens, it adds delicate texture among more substantial drought-tolerant plants. Consider it for moon gardens or evening-focused landscapes where you can appreciate its nighttime blooming schedule.

Since it’s a low-growing forb without significant woody tissue, Paiute suncup makes an excellent ground-level component in layered native plantings. It won’t compete with larger shrubs and perennials but instead fills in the spaces with seasonal color and texture.

Growing Conditions and Care

One of the best things about Paiute suncup is how easy it is to grow, provided you can meet its basic needs:

  • Sunlight: Requires full sun for best flowering and growth
  • Soil: Prefers well-drained, sandy or gravelly soils that mimic its natural habitat
  • Water: Low water requirements once established; avoid overwatering
  • Climate: Hardy in USDA zones 4-9, covering most of its natural range

Planting and Establishment Tips

Getting Paiute suncup established in your garden is straightforward:

  • Direct seed in fall or early spring when soil temperatures are cool
  • Scatter seeds on prepared soil surface and lightly rake in—they need some light to germinate
  • Water gently until germination occurs, then reduce watering frequency
  • Allow plants to complete their natural lifecycle and self-seed for future years
  • Avoid fertilizing, as rich soils can actually reduce flowering

Wildlife and Ecosystem Benefits

While Paiute suncup might seem like just a pretty face, it plays an important role in supporting native wildlife. Its evening-blooming flowers provide nectar for moths, which are crucial pollinators often overlooked in garden planning. These moths, in turn, serve as food sources for bats and night-hunting birds, creating connections throughout the ecosystem.

Is Paiute Suncup Right for Your Garden?

Paiute suncup is an excellent choice if you’re gardening in its native range and want to create authentic, low-maintenance landscapes. It’s particularly valuable for gardeners interested in supporting nocturnal pollinators or creating evening interest in their outdoor spaces.

However, if you’re looking for bold, daytime color or long-lasting blooms, this might not be your plant. Its flowers are relatively small and short-lived, and the evening blooming schedule means you might miss the show if you’re not a night owl yourself.

For western gardeners seeking to create sustainable, regionally appropriate landscapes that support native wildlife while requiring minimal resources, Paiute suncup offers a perfect combination of ecological value and effortless charm. Give this little native a try—you might just find yourself staying up a bit later to enjoy its evening performance.

Paiute Suncup

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

Camissonia Link - suncup

Species

Camissonia scapoidea (Nutt. ex Torr. & A. Gray) P.H. Raven - Paiute suncup

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