North America Native Plant

Tecate Tarweed

Botanical name: Hemizonia floribunda

USDA symbol: HEFL4

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Deinandra floribunda (A. Gray) Davidson & Moxley (DEFL5)   

Tecate Tarweed: A Rare California Native Worth Protecting in Your Garden If you’re looking to add a touch of California’s wild heritage to your garden while supporting conservation efforts, Tecate tarweed might just be the perfect choice. This charming annual wildflower brings both beauty and ecological value to native plant ...

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 ⚘

Tecate Tarweed: A Rare California Native Worth Protecting in Your Garden

If you’re looking to add a touch of California’s wild heritage to your garden while supporting conservation efforts, Tecate tarweed might just be the perfect choice. This charming annual wildflower brings both beauty and ecological value to native plant gardens, though its rarity makes it a special find that requires thoughtful cultivation.

Meet the Tecate Tarweed

Tecate tarweed (Hemizonia floribunda) is a delightful annual forb that belongs to California’s rich tapestry of native wildflowers. You might also see it listed under its synonym Deinandra floribunda in some plant databases, but don’t let the name changes fool you – this is the same wonderful plant that has been gracing Southern California landscapes for generations.

As an annual herb, Tecate tarweed completes its entire life cycle in just one growing season, making it a dynamic addition to gardens that change and evolve each year. Unlike woody shrubs or trees, this forb has soft, non-woody stems and keeps its growing points at or near ground level.

Where Does Tecate Tarweed Call Home?

This native beauty is proudly Californian, with its natural range centered in Southern California, particularly around San Diego County and extending into Baja California, Mexico. It’s perfectly adapted to the Mediterranean climate of this region, thriving in areas that experience mild, wet winters and dry summers.

A Rare Treasure Deserving Protection

Here’s something important every gardener should know: Tecate tarweed 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 plant is quite rare and faces potential threats to its survival.

What this means for gardeners: If you choose to grow Tecate tarweed, please source your seeds or plants responsibly from reputable native plant nurseries that ethically collect or propagate their stock. Never collect seeds from wild populations, as this could harm already vulnerable communities of this special plant.

Why Grow Tecate Tarweed?

Despite its rarity – or perhaps because of it – there are compelling reasons to include this native annual in your garden:

  • Pollinator magnet: The cheerful yellow daisy-like flowers attract native bees, butterflies, and other beneficial insects
  • Low maintenance: Once established, it’s quite drought tolerant and thrives in poor soils
  • Conservation impact: Growing native plants helps support local ecosystems and provides habitat for wildlife
  • Authentic beauty: Nothing beats the natural charm of plants that truly belong in your region

Perfect Garden Settings

Tecate tarweed shines in several garden styles:

  • Native wildflower gardens where it can naturalize
  • Drought-tolerant landscapes that celebrate water-wise gardening
  • Mediterranean-style gardens that mirror Southern California’s natural climate
  • Pollinator gardens designed to support local beneficial insects

Growing Tecate Tarweed Successfully

The good news is that this native annual isn’t particularly fussy about growing conditions – after all, it’s adapted to California’s sometimes challenging climate!

Climate considerations: Tecate tarweed is best suited for USDA hardiness zones 9-11, which matches its natural Southern California range.

Sunlight and soil: Give this sun-lover a spot with full sun exposure and well-draining soil. It actually prefers lean, poor soils over rich, amended ground – a trait that makes it perfect for low-maintenance gardens.

Water needs: While young plants appreciate some water to get established, mature Tecate tarweed is quite drought tolerant. This makes it an excellent choice for water-wise gardens.

Planting and Care Tips

Growing Tecate tarweed from seed is typically the most successful approach:

  • Sow seeds directly in the garden during fall months to take advantage of natural winter rains
  • Lightly rake seeds into the soil surface – they need some soil contact but shouldn’t be buried deeply
  • Water gently until seedlings are established, then reduce watering frequency
  • Allow plants to complete their lifecycle and drop seeds for next year’s display

A Garden Investment in California’s Future

By choosing to grow Tecate tarweed responsibly, you’re not just adding a lovely native plant to your landscape – you’re participating in conservation efforts and supporting the biodiversity that makes California’s ecosystems so special. This rare annual may be small, but its impact on your garden’s ecological value is anything but minor.

Remember, the key to successful native gardening is working with nature rather than against it. Tecate tarweed has spent thousands of years perfecting its relationship with California’s climate and wildlife, making it a reliable and rewarding choice for gardeners ready to embrace the beauty of truly local plants.

Tecate 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

Hemizonia DC. - tarweed

Species

Hemizonia floribunda A. Gray - Tecate tarweed

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