North America Native Plant

Desert Blazingstar

Botanical name: Mentzelia desertorum

USDA symbol: MEDE5

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Acrolasia desertorum Davidson (ACDE6)   

Desert Blazingstar: A Hidden Gem for Your Desert Garden If you’re looking to add a touch of wild desert magic to your landscape, meet the desert blazingstar (Mentzelia desertorum). This charming little annual might not win any height contests, but what it lacks in stature, it more than makes up ...

Rare plant alert!

Region: Conservation status by state

Status: S2S4: Status is uncertain but is somewhere between the following rankings: 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) ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Desert Blazingstar: A Hidden Gem for Your Desert Garden

If you’re looking to add a touch of wild desert magic to your landscape, meet the desert blazingstar (Mentzelia desertorum). This charming little annual might not win any height contests, but what it lacks in stature, it more than makes up for in personality and ecological value.

What Makes Desert Blazingstar Special?

Desert blazingstar is a true native of the American Southwest, naturally occurring in Arizona and California’s desert regions. As an annual forb—basically a non-woody flowering plant—it completes its entire life cycle in one growing season, making it a perfect candidate for gardeners who enjoy seasonal changes and don’t mind replanting.

This little desert dweller belongs to the blazingstar family, and while it may also go by the scientific name Mentzelia desertorum (or its synonym Acrolasia desertorum), most gardeners simply call it desert blazingstar—a name that perfectly captures its star-shaped yellow flowers.

The Evening Show

Here’s where desert blazingstar gets really interesting: it’s a bit of a night owl. The bright yellow, papery flowers typically open in late afternoon or early evening, creating a stunning display just when many other desert plants are calling it a day. The star-shaped blooms, with their prominent stamens, put on quite the show for evening pollinators like moths and beetles.

Is Desert Blazingstar Right for Your Garden?

Desert blazingstar shines brightest in specific garden settings:

  • Xeriscape gardens: Perfect for water-wise landscaping
  • Desert landscapes: Adds authentic native character
  • Rock gardens: Thrives in well-draining, rocky conditions
  • Wildlife gardens: Supports native pollinators
  • Naturalized areas: Great for creating wild, natural-looking spaces

However, this plant might not be the best choice if you’re looking for a year-round anchor plant or need something for shady, moist conditions. As an annual, it will complete its life cycle and die back, requiring replanting each season.

Growing Conditions and Care

The good news about desert blazingstar is that it’s refreshingly low-maintenance—if you give it what it wants:

Sunlight: Full sun is essential. This desert native craves bright, direct sunlight for most of the day.

Soil: Well-draining sandy or rocky soil is crucial. Heavy clay or soggy conditions will quickly spell doom for this drought-adapted plant.

Water: Less is definitely more. Once established, desert blazingstar is extremely drought tolerant and actually prefers minimal watering.

Climate: Best suited for USDA hardiness zones 8-10, particularly in desert regions where it can experience the natural temperature fluctuations it’s adapted to.

Planting and Care Tips

Growing desert blazingstar successfully is all about timing and location:

  • Timing: Direct seed in fall or early spring when temperatures are mild
  • Location: Choose the sunniest, most well-draining spot in your garden
  • Spacing: Give plants adequate space for air circulation
  • Watering: Water sparingly during establishment, then reduce to minimal supplemental watering
  • Maintenance: Virtually maintenance-free once established

Supporting Native Wildlife

One of the best reasons to grow desert blazingstar is its value to native wildlife. The evening-blooming flowers attract nocturnal pollinators that are often overlooked in garden planning, including various moth species and beetles. This makes it an excellent choice for gardeners interested in supporting the full spectrum of native pollinators.

A Note on Conservation

Desert blazingstar has a conservation status that suggests it may face some population pressures in the wild. While this doesn’t prevent you from growing it, it does make cultivating this native species even more worthwhile as a way to support biodiversity in your local area.

The Bottom Line

Desert blazingstar is an excellent choice for gardeners in suitable climates who want to create authentic desert landscapes while supporting native wildlife. Its evening blooming habit, minimal care requirements, and ecological value make it a unique addition to the right garden setting. Just remember: this is a plant that knows what it wants—sunshine, excellent drainage, and minimal fussing. Give it these simple requirements, and you’ll be rewarded with a delightful display of desert wildflower charm.

Desert 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 desertorum (Davidson) H.J. Thomp. & Roberts - desert blazingstar

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