North America Native Plant

Rattlesnake Flower

Botanical name: Brazoria truncata var. truncata

USDA symbol: BRTRT2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Rattlesnake Flower: A Hidden Gem for Texas Native Gardens If you’re looking for a charming native annual that practically grows itself while providing fantastic benefits for pollinators, let me introduce you to the rattlesnake flower (Brazoria truncata var. truncata). Don’t let the name fool you – this delightful Texas native ...

Rattlesnake Flower: A Hidden Gem for Texas Native Gardens

If you’re looking for a charming native annual that practically grows itself while providing fantastic benefits for pollinators, let me introduce you to the rattlesnake flower (Brazoria truncata var. truncata). Don’t let the name fool you – this delightful Texas native has nothing scary about it and everything wonderful for your garden!

What Makes Rattlesnake Flower Special?

Rattlesnake flower is a true Texas original, found naturally only in the Lone Star State. This annual herb belongs to the mint family and brings a subtle but distinctive presence to any native garden. The plant produces small, tubular flowers that range from white to pale purple, arranged in attractive terminal spikes that seem to dance above the aromatic foliage.

Where Does It Grow?

This native beauty is endemic to Texas, where it thrives in coastal prairie regions and other grassland habitats. As a plant that’s perfectly adapted to Texas conditions, it’s an excellent choice for gardeners looking to create authentic native landscapes.

Why Choose Rattlesnake Flower for Your Garden?

There are several compelling reasons to include this native annual in your landscape:

  • Pollinator magnet: The flowers are beloved by native bees, butterflies, and other beneficial insects
  • Low maintenance: Once established, it requires minimal care and is naturally drought tolerant
  • Self-seeding: As an annual, it will readily reseed itself, ensuring a continuous presence in your garden
  • Authentic native character: Perfect for prairie restorations and wildflower meadows
  • Aromatic foliage: The leaves have a pleasant fragrance that adds sensory interest

Growing Conditions and Care

Rattlesnake flower is refreshingly easy to grow, especially if you can mimic its natural prairie habitat:

  • Sunlight: Full sun is essential for best performance
  • Soil: Well-drained soils are preferred; avoid soggy conditions
  • Water: Drought tolerant once established, but benefits from occasional watering during dry spells
  • USDA Zones: Thrives in zones 8b through 10a

Planting and Establishment Tips

The best approach for growing rattlesnake flower is direct seeding:

  • Plant seeds in fall for spring germination
  • Scatter seeds over prepared soil and lightly rake in
  • Keep soil moderately moist until germination occurs
  • Allow plants to go to seed at the end of the growing season for natural reseeding

Garden Design Ideas

Rattlesnake flower shines in several garden settings:

  • Wildflower meadows: Mix with other native Texas annuals and perennials
  • Prairie gardens: Essential component of authentic coastal prairie restorations
  • Pollinator gardens: Combine with other native flowering plants for season-long blooms
  • Naturalized areas: Perfect for low-maintenance areas where you want native character

The Bottom Line

Rattlesnake flower may not be the showiest plant in your garden, but it’s definitely one of the most valuable. This Texas native annual offers authentic regional character, fantastic pollinator benefits, and the kind of low-maintenance growing habit that makes gardening a joy rather than a chore. If you’re passionate about supporting native ecosystems and creating sustainable landscapes, rattlesnake flower deserves a spot in your garden plan.

Remember, when you plant natives like rattlesnake flower, you’re not just creating a beautiful garden – you’re helping to preserve Texas’s natural heritage and supporting the wildlife that depends on these indigenous plants. Now that’s something to feel good about!

Rattlesnake Flower

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

Lamiales

Family

Lamiaceae Martinov - Mint family

Genus

Brazoria Engelm. & A. Gray - Brazos-mint

Species

Brazoria truncata (Benth.) Engelm. & A. Gray - rattlesnake flower

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