North America Native Plant

San Jacinto Bluecurls

Botanical name: Trichostema austromontanum austromontanum

USDA symbol: TRAUA2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

San Jacinto Bluecurls: A Rare Gem for Your Native Garden If you’re looking to add a touch of wild California beauty to your garden while supporting local ecosystems, San Jacinto bluecurls might just be the perfect addition. This charming annual wildflower brings delicate blue-purple blooms and a lovely fragrance that ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4T3T4: 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 ⚘ Subspecies or variety is 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. ⚘ 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 ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘

San Jacinto Bluecurls: A Rare Gem for Your Native Garden

If you’re looking to add a touch of wild California beauty to your garden while supporting local ecosystems, San Jacinto bluecurls might just be the perfect addition. This charming annual wildflower brings delicate blue-purple blooms and a lovely fragrance that will transport you straight to the mountain meadows of Southern California.

What Makes San Jacinto Bluecurls Special?

San Jacinto bluecurls (Trichostema austromontanum austromontanum) is a native annual forb that belongs to the mint family. As an herbaceous plant without woody stems, it completes its entire life cycle in a single growing season, making it a delightful surprise that returns each year from seed.

This little beauty is truly a California native, naturally occurring in the Golden State and extending into parts of Nevada. Its geographic range centers around the San Jacinto Mountains region, where it has adapted to the unique conditions of Southern California’s montane environments.

A Word About Rarity

Here’s something important every gardener should know: San Jacinto bluecurls has a conservation status that suggests its populations may be of concern. If you’re interested in growing this plant, please make sure you source seeds or plants from reputable native plant nurseries that practice responsible collection methods. Never collect from wild populations, and always choose nursery-propagated material.

Why Your Garden (and Local Wildlife) Will Love It

San Jacinto bluecurls offers several compelling reasons to earn a spot in your landscape:

  • Beautiful small blue to purple tubular flowers that bloom in attractive clusters
  • Aromatic foliage that adds sensory appeal to your garden
  • Excellent pollinator magnet, attracting native bees, butterflies, and other beneficial insects
  • Perfect for supporting local ecosystems and biodiversity
  • Low-maintenance once established

Where to Plant San Jacinto Bluecurls

This adaptable annual works wonderfully in several garden settings:

  • Native plant gardens focused on California flora
  • Wildflower meadows and naturalized areas
  • Xeriscape and water-wise landscapes
  • Pollinator gardens
  • Rock gardens with good drainage

Growing Conditions and Care

San Jacinto bluecurls is surprisingly easy to grow when you give it conditions similar to its native habitat:

Climate: Hardy in USDA zones 8-10, making it perfect for mild winter regions.

Sunlight: Thrives in full sun locations where it can soak up those California rays.

Soil: Prefers well-draining soils and can handle rocky or sandy conditions. Good drainage is essential to prevent root rot.

Water: Once established, this drought-tolerant beauty requires minimal supplemental watering. Water regularly during germination and early growth, then reduce frequency as the plant matures.

Planting and Care Tips

Getting San Jacinto bluecurls established in your garden is straightforward with these tips:

  • Direct seed in fall for best results, allowing natural winter stratification
  • Scatter seeds over prepared soil and lightly rake in
  • Keep soil consistently moist until germination occurs
  • Once plants are established, water sparingly – they prefer conditions on the dry side
  • No fertilizer needed – these plants are adapted to lean soils
  • Allow some plants to go to seed to ensure next year’s display

The Bottom Line

San Jacinto bluecurls represents the best of what native gardening has to offer: natural beauty, ecological benefits, and relatively easy care. While its conservation status means we need to be thoughtful about sourcing, this remarkable little annual can be a wonderful addition to gardens in suitable climates. By choosing to grow native plants like San Jacinto bluecurls, you’re not just creating a beautiful landscape – you’re helping preserve California’s natural heritage for future generations to enjoy.

Remember to always source your plants responsibly, and enjoy watching this charming wildflower attract a parade of pollinators to your garden throughout the growing season!

San Jacinto Bluecurls

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

Trichostema L. - bluecurls

Species

Trichostema austromontanum F.H. Lewis - San Jacinto bluecurls

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