North America Native Plant

Mojave Tarweed

Botanical name: Deinandra mohavensis

USDA symbol: DEMO5

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Hemizonia mohavensis D.D. Keck (HEMO5)   

Mojave Tarweed: A Rare Desert Gem for Your Native Garden Meet Mojave tarweed (Deinandra mohavensis), a charming little annual that brings the wild beauty of California’s Mojave Desert right to your garden. This unassuming native herb might not win any height contests, but what it lacks in stature, it more ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: 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) ⚘ 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 ⚘

Mojave Tarweed: A Rare Desert Gem for Your Native Garden

Meet Mojave tarweed (Deinandra mohavensis), a charming little annual that brings the wild beauty of California’s Mojave Desert right to your garden. This unassuming native herb might not win any height contests, but what it lacks in stature, it more than makes up for in desert toughness and ecological value.

What Makes Mojave Tarweed Special?

Mojave tarweed is a true California native, belonging to the sunflower family and perfectly adapted to life in some of the state’s most challenging environments. As an annual forb, this herbaceous plant completes its entire life cycle in one growing season, making the most of brief favorable conditions in the desert.

You might also see this plant listed under its scientific synonym, Hemizonia mohavensis, in older gardening references, but Deinandra mohavensis is the current accepted name.

Where Does It Grow Wild?

This desert specialist calls California home, specifically thriving in the Mojave Desert region. You’ll find wild populations growing in sandy washes, desert flats, and other well-draining locations where few other plants dare to venture.

Important Conservation Note

Before you rush to add Mojave tarweed to your garden, there’s something crucial to know: this plant has a conservation status of S2S3, meaning it’s considered rare to uncommon in its native range. While we absolutely encourage growing this beautiful native, please only use seeds or plants from responsible, ethical sources that don’t impact wild populations. Never collect from the wild!

Why Grow Mojave Tarweed?

Despite its rarity in nature, Mojave tarweed can be a delightful addition to the right garden setting. Here’s why desert gardeners are falling in love with this little charmer:

  • Authentic desert beauty: Small, cheerful yellow daisy-like flowers that capture the essence of the Mojave
  • Pollinator magnet: Native bees, butterflies, and other desert pollinators absolutely love this plant
  • Ultra-low maintenance: Once established, it thrives on neglect
  • Water-wise: Perfect for xeriscaping and drought-tolerant landscapes
  • Aromatic foliage: The leaves have a pleasant, distinctive fragrance

Perfect Garden Settings

Mojave tarweed shines brightest in:

  • Native plant and wildflower gardens
  • Xeriscape and drought-tolerant landscapes
  • Desert-themed garden designs
  • Rock gardens with excellent drainage
  • Restoration projects in appropriate regions

Growing Conditions and Care

Think desert tough and you’ll understand exactly what Mojave tarweed needs to thrive:

Sunlight: Full sun is essential – this plant has zero tolerance for shade

Soil: Well-draining, sandy, or gravelly soil is a must. Heavy clay or water-retentive soils will quickly kill this desert native

Water: Minimal irrigation once established. Too much water is far more dangerous than too little

Climate: Best suited for USDA hardiness zones 9-11, particularly in arid regions

Planting and Care Tips

Growing Mojave tarweed successfully is all about mimicking its natural desert habitat:

  • Timing: Direct seed in fall when cooler temperatures and occasional rains provide natural germination conditions
  • Soil prep: Ensure excellent drainage – consider raised beds or slopes if your soil tends to hold water
  • Watering: Water sparingly during establishment, then let nature take over
  • Maintenance: Allow plants to self-seed for natural population renewal
  • Fertilizer: None needed – desert plants prefer lean conditions

Supporting Wildlife

While small in stature, Mojave tarweed punches above its weight when it comes to supporting desert wildlife. Native pollinators depend on plants like this for nectar and pollen, making it an important component of a functioning desert ecosystem.

The Bottom Line

Mojave tarweed is a wonderful choice for gardeners looking to create authentic desert landscapes while supporting native wildlife. Its rarity makes it extra special – just remember to source it responsibly. With minimal care and the right growing conditions, this little desert gem will reward you with cheerful blooms and the satisfaction of growing a true California native.

Ready to add some Mojave Desert magic to your garden? Seek out reputable native plant nurseries or seed suppliers who can provide ethically sourced Mojave tarweed for your landscape adventure.

Mojave Tarweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Deinandra Greene - tarweed

Species

Deinandra mohavensis (D.D. Keck) B.G. Baldw. - Mojave tarweed

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