North America Native Plant

Leechleaf Blazingstar

Botanical name: Mentzelia sinuata

USDA symbol: MESI

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Nuttallia sinuata (Rydb.) Daniels (NUSI)   

Leechleaf Blazingstar: A Rare Prairie Gem Worth Growing Responsibly If you’re searching for a stunning native wildflower that’s both beautiful and beneficial, leechleaf blazingstar might just be your perfect match. This remarkable prairie perennial brings bright yellow blooms and pollinator appeal to gardens, but it comes with an important conservation ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Leechleaf Blazingstar: A Rare Prairie Gem Worth Growing Responsibly

If you’re searching for a stunning native wildflower that’s both beautiful and beneficial, leechleaf blazingstar might just be your perfect match. This remarkable prairie perennial brings bright yellow blooms and pollinator appeal to gardens, but it comes with an important conservation story that every gardener should know.

What Makes Leechleaf Blazingstar Special

Scientifically known as Mentzelia sinuata, leechleaf blazingstar is a native forb that belongs to the blazingstar family. As a perennial plant, it returns year after year, gradually establishing itself as a reliable garden performer. The plant produces eye-catching star-shaped yellow flowers adorned with prominent stamens that seem to glow in the summer sunshine.

You might occasionally see this plant listed under its synonym, Nuttallia sinuata, but don’t let the name confusion fool you – it’s the same wonderful wildflower.

Where Leechleaf Blazingstar Calls Home

This prairie beauty is native to a relatively small area in the American West, naturally occurring in Colorado and Wyoming. It thrives in the high plains and foothills region, where it has adapted to challenging growing conditions over thousands of years.

An Important Conservation Note

Before you rush to add leechleaf blazingstar to your garden, there’s something crucial you need to know: this plant has a Global Conservation Status of S3, meaning it’s considered vulnerable. With typically only 21 to 100 occurrences and between 3,000 to 10,000 individuals remaining in the wild, this is a species that needs our help.

But here’s the good news – you can absolutely grow this plant and contribute to its conservation! The key is sourcing your plants or seeds responsibly from reputable native plant nurseries that propagate rather than wild-collect their stock.

Why Gardeners Love Leechleaf Blazingstar

Despite its rarity in the wild, leechleaf blazingstar offers several compelling reasons to include it in your landscape:

  • Stunning yellow star-shaped flowers that bloom in summer
  • Attracts bees, butterflies, and other important pollinators
  • Extremely drought tolerant once established
  • Low maintenance requirements
  • Perfect for xeriscaping and water-wise gardens
  • Adds authentic prairie character to native plant gardens

Perfect Garden Settings

Leechleaf blazingstar shines brightest in these garden styles:

  • Native plant gardens and prairie restorations
  • Rock gardens and alpine-style plantings
  • Xeriscaping and drought-tolerant landscapes
  • Wildflower meadows
  • Pollinator gardens

The plant works beautifully as an accent species, adding pops of bright yellow color among grasses and other native perennials.

Growing Conditions and Care

One of the best things about leechleaf blazingstar is how easy it is to grow once you understand its needs. This tough prairie plant thrives in USDA hardiness zones 4-7, making it suitable for much of the northern United States.

Here’s what your leechleaf blazingstar needs to flourish:

  • Sunlight: Full sun is essential – this plant loves basking in direct sunlight all day
  • Soil: Well-drained soils are crucial; avoid heavy clay or constantly moist conditions
  • Water: Drought tolerant once established, but benefits from occasional deep watering during extended dry spells
  • Maintenance: Minimal care required once established

Planting and Care Tips

Getting your leechleaf blazingstar off to a strong start is straightforward:

  • Plant in spring after the last frost date
  • Choose a sunny location with excellent drainage
  • Water regularly during the first growing season to help establish roots
  • Avoid overwatering – this is the quickest way to harm your plant
  • Allow soil to dry between waterings
  • Deadhead spent flowers to encourage continued blooming
  • Leave seed heads in fall to provide food for wildlife

Supporting Pollinators and Conservation

By growing leechleaf blazingstar, you’re creating valuable habitat for native pollinators while helping preserve a vulnerable species. The bright yellow flowers attract various bees and butterflies, contributing to your local ecosystem’s health.

The Bottom Line

Leechleaf blazingstar deserves a place in more gardens, both for its beauty and its conservation value. This drought-tolerant native brings authentic prairie charm and important pollinator benefits to landscapes, all while requiring minimal care once established.

Just remember to source your plants responsibly from reputable nurseries that propagate their own stock. By choosing to grow this vulnerable species, you’re not just adding beauty to your garden – you’re becoming a conservation partner in preserving one of our native prairie treasures for future generations.

Leechleaf Blazingstar

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Violales

Family

Loasaceae Juss. - Loasa family

Genus

Mentzelia L. - blazingstar

Species

Mentzelia sinuata (Rydb.) R.J. Hill - leechleaf blazingstar

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