North America Native Plant

Rosy Bird’s-foot Trefoil

Botanical name: Lotus aboriginus

USDA symbol: LOAB

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Hosackia rosea Eastw. (HORO3)  âš˜  Lotus crassifolius (Benth.) Greene var. subglaber (Ottley) C.L. Hitchc. (LOCRS)  âš˜  Lotus stipularis (Benth.) Greene var. subglaber Ottley (LOSTS3)   

Rosy Bird’s-Foot Trefoil: A Charming Pacific Coast Native If you’re looking to add a splash of rosy pink to your native garden while supporting local wildlife, rosy bird’s-foot trefoil (Lotus aboriginus) might just be the perfect addition to your landscape. This delightful Pacific Coast native brings both beauty and ecological ...

Rosy Bird’s-Foot Trefoil: A Charming Pacific Coast Native

If you’re looking to add a splash of rosy pink to your native garden while supporting local wildlife, rosy bird’s-foot trefoil (Lotus aboriginus) might just be the perfect addition to your landscape. This delightful Pacific Coast native brings both beauty and ecological benefits to gardens throughout its range.

What Makes Rosy Bird’s-Foot Trefoil Special?

Rosy bird’s-foot trefoil is a perennial forb that produces clusters of small, pea-like flowers in lovely shades of pink to rose. The plant gets its common name from both its colorful blooms and its compound leaves that somewhat resemble a bird’s foot. As a member of the legume family, this little powerhouse can actually fix nitrogen in the soil, making it a valuable addition to any garden ecosystem.

You might also encounter this plant listed under its botanical synonyms, including Hosackia rosea or various Lotus subspecies, but they all refer to the same charming native species.

Where Does It Call Home?

This Pacific Coast native thrives naturally in California, Oregon, and Washington. It’s perfectly adapted to the unique climate and growing conditions of the West Coast, making it an excellent choice for gardeners in these states who want to create authentic native landscapes.

Why Grow Rosy Bird’s-Foot Trefoil?

There are several compelling reasons to consider adding this native beauty to your garden:

  • Pollinator magnet: The pink flowers attract native bees, butterflies, and other beneficial insects
  • Low maintenance: Once established, it requires minimal care and water
  • Soil improvement: As a legume, it naturally enriches soil with nitrogen
  • Erosion control: Its spreading habit makes it useful for stabilizing slopes
  • Authentic native appeal: Perfect for creating genuine regional landscapes

Garden Design and Landscape Uses

Rosy bird’s-foot trefoil works wonderfully in several garden settings:

  • Native plant gardens and wildflower meadows
  • Xeriscape and drought-tolerant landscapes
  • Coastal gardens where it can handle salt-tinged air
  • Ground cover for naturalized areas
  • Slope stabilization projects

Its low-growing, spreading form makes it an excellent ground cover that won’t compete with taller native shrubs and trees.

Growing Conditions and Care

One of the best things about rosy bird’s-foot trefoil is how easy it is to please. This hardy native thrives in USDA zones 8-10 and prefers:

  • Soil: Well-draining, sandy, or rocky soils (avoid heavy clay)
  • Sun exposure: Full sun to partial shade
  • Water: Drought tolerant once established; minimal supplemental watering needed
  • Fertilizer: None needed – it fixes its own nitrogen!

The plant’s wetland status varies by region – it’s typically found in upland areas in the Arid West but may occasionally appear in wetter spots in mountainous and coastal regions.

Planting and Establishment Tips

Getting rosy bird’s-foot trefoil established in your garden is straightforward:

  • Direct seed in fall for best results
  • Scarify seeds lightly to improve germination
  • Plant in well-prepared, weed-free soil
  • Water regularly during the first growing season
  • Once established, reduce watering significantly

Be patient during establishment – like many natives, this plant may take a season or two to really show its stuff, but the wait is worth it!

Is This Plant Right for Your Garden?

Rosy bird’s-foot trefoil is an excellent choice for Pacific Coast gardeners who want to support local ecosystems while enjoying beautiful, low-maintenance color. It’s particularly perfect if you’re dealing with poor soils, slopes that need stabilizing, or areas where you want to reduce water usage.

However, if you’re gardening outside of California, Oregon, or Washington, you’ll want to look for native alternatives better suited to your region. Every area has its own wonderful native legumes that can provide similar benefits while supporting local wildlife.

For West Coast gardeners, though, rosy bird’s-foot trefoil offers a delightful combination of beauty, ecological value, and easy care that’s hard to beat. Give this charming native a try, and you’ll be rewarded with lovely pink blooms and the satisfaction of supporting your local ecosystem.

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

Arid West

UPL

Obligate Upland - Plants with this status almost never occurs in wetlands

Western Mountains, Valleys, and Coast

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Rosy Bird’s-foot Trefoil

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

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Lotus L. - trefoil

Species

Lotus aboriginus Jeps. - rosy bird's-foot trefoil

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