North America Native Plant

Tiehm’s Blazing Star

Botanical name: Mentzelia tiehmii

USDA symbol: METI

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Tiehm’s Blazing Star: A Rare Nevada Native Worth Protecting Meet Tiehm’s blazing star (Mentzelia tiehmii), a little-known perennial wildflower that’s as rare as it is beautiful. This Nevada native might not be on every gardener’s wish list, but for those passionate about conservation and native plant gardening, it represents something ...

Rare plant alert!

Region: Conservation status by state

Status: S1S2: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ 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) ⚘

Tiehm’s Blazing Star: A Rare Nevada Native Worth Protecting

Meet Tiehm’s blazing star (Mentzelia tiehmii), a little-known perennial wildflower that’s as rare as it is beautiful. This Nevada native might not be on every gardener’s wish list, but for those passionate about conservation and native plant gardening, it represents something truly special – a chance to help preserve a piece of America’s botanical heritage right in your own backyard.

A True Nevada Original

Tiehm’s blazing star is what botanists call an endemic species – meaning it naturally occurs in only one place on Earth. In this case, that place is Nevada, where this hardy perennial has adapted to the state’s unique desert conditions over thousands of years. As a native forb (that’s just a fancy word for a non-woody flowering plant), it plays an important role in Nevada’s natural ecosystems.

This plant is classified as a perennial herb, meaning it comes back year after year without the thick, woody stems you’d find on shrubs or trees. Instead, it survives harsh winters by keeping its growing points at or below ground level – a smart survival strategy for desert living!

Why This Plant Matters (And Why You Should Care)

Important Conservation Alert: Before we dive into growing tips, there’s something crucial you need to know. Tiehm’s blazing star has a Global Conservation Status of S1S2, which means it’s considered critically rare to rare throughout its range. This isn’t just another pretty wildflower – it’s a species that needs our help to survive.

If you’re interested in growing this plant, please make sure you source it responsibly from reputable native plant nurseries or conservation programs. Never collect seeds or plants from wild populations, as this could harm the species’ chances of survival.

What Makes It Special in the Garden

So what exactly are you getting with Tiehm’s blazing star? Like other members of the blazing star family, this plant produces cheerful yellow flowers that typically bloom during the summer months. The flowers aren’t huge or showy, but they have a delicate charm that native plant enthusiasts absolutely love.

Here’s where this plant really shines in the landscape:

  • Perfect for specialized native plant gardens focused on Nevada flora
  • Excellent choice for rock gardens and xeriscaping projects
  • Ideal for conservation-minded gardeners who want to grow rare species
  • Great conversation starter for visitors interested in plant conservation

Growing Tiehm’s Blazing Star Successfully

The good news is that once you understand its needs, Tiehm’s blazing star isn’t particularly difficult to grow. Like most Nevada natives, it’s built for tough conditions and actually prefers a less is more approach to care.

Light Requirements: Full sun is essential. This plant evolved in the open desert and needs plenty of direct sunlight to thrive.

Soil Needs: The number one key to success is excellent drainage. This plant absolutely cannot tolerate wet feet. Sandy or gravelly soil is ideal, and if you have heavy clay soil, you’ll need to amend it heavily or consider growing it in raised beds or containers.

Water Wisdom: Once established, Tiehm’s blazing star is quite drought tolerant. In fact, overwatering is probably the fastest way to kill it. Water deeply but infrequently, and always let the soil dry out completely between waterings.

Climate Considerations: This plant is typically hardy in USDA zones 4-8, making it suitable for a wide range of climates. It’s naturally adapted to Nevada’s temperature extremes, so it can handle both hot summers and cold winters.

Supporting Pollinators and Wildlife

One of the best reasons to grow Tiehm’s blazing star is its value to native pollinators. The flowers attract native bees and other small pollinators that have co-evolved with Nevada’s native plants. By growing this species, you’re not just adding beauty to your garden – you’re providing crucial habitat for native insects that might otherwise struggle to find appropriate food sources.

Planting and Care Tips

  • Plant in spring: Give your blazing star the full growing season to establish before its first winter
  • Mulch with gravel: Instead of organic mulch, use a light layer of gravel or small stones to improve drainage and suppress weeds
  • Avoid fertilizers: Native plants typically don’t need fertilization and may actually be harmed by rich soils
  • Be patient: Like many perennials, it may take a year or two to really get established and show its best growth
  • Practice minimal intervention: The less you fuss with it, the better it will do

The Bottom Line: Should You Grow It?

Tiehm’s blazing star isn’t for everyone, and that’s okay. This is a plant for gardeners who are passionate about conservation, native plant preservation, or creating authentic Nevada landscapes. If you’re looking for big, showy flowers or easy-care plants for beginners, you might want to start with more common native species.

But if you’re intrigued by the idea of growing a truly rare plant and contributing to conservation efforts, Tiehm’s blazing star could be a wonderful addition to your garden. Just remember to source it responsibly and give it the well-draining conditions it needs to thrive.

By choosing to grow rare native species like Tiehm’s blazing star, you become part of a larger conservation effort – helping to preserve genetic diversity and ensuring that future generations will be able to enjoy these unique plants. Now that’s what we call gardening with purpose!

Tiehm’s Blazing Star

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 tiehmii N.H. Holmgren & P.K. Holmgren - Tiehm's blazing star

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