North America Native Plant

Pacific Yerba Santa

Botanical name: Eriodictyon traskiae

USDA symbol: ERTR6

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Eriodictyon tomentosum Benth. ssp. traskiae (Eastw.) Munz (ERTOT)  âš˜  Eriodictyon traskiae Eastw. ssp. smithii Munz (ERTRS)   

Pacific Yerba Santa: A Rare Island Beauty for Your Native Garden Meet Pacific yerba santa (Eriodictyon traskiae), one of California’s most exclusive native plants! This charming shrub might not be a household name, but it’s definitely worth getting to know – especially if you’re passionate about rare native plants and ...

Rare plant alert!

Region: Conservation status by state

Status: S3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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 ⚘

Pacific Yerba Santa: A Rare Island Beauty for Your Native Garden

Meet Pacific yerba santa (Eriodictyon traskiae), one of California’s most exclusive native plants! This charming shrub might not be a household name, but it’s definitely worth getting to know – especially if you’re passionate about rare native plants and supporting local ecosystems.

What Makes Pacific Yerba Santa Special?

Pacific yerba santa is a perennial shrub that brings both beauty and ecological value to the right garden. Also known by its scientific name Eriodictyon traskiae, this multi-stemmed woody plant typically grows less than 13-16 feet tall, making it a perfect size for most residential landscapes.

What really sets this plant apart is its striking appearance. The silvery-white, woolly leaves create a soft, almost ethereal texture in the garden, while clusters of white to pale lavender tubular flowers add delicate color and attract beneficial pollinators like bees and butterflies.

Where Does It Come From?

Here’s where things get really interesting – Pacific yerba santa is endemic to Santa Catalina Island off the coast of California. This makes it one of the most geographically restricted native plants you can grow, found naturally nowhere else on Earth!

A Word About Rarity

Before we dive into growing tips, there’s something important to know: Pacific yerba santa has a conservation status of S3, meaning it’s considered vulnerable. While this makes it extra special to grow, it also means you should only obtain plants from reputable nurseries that source their material responsibly. Never collect from wild populations!

Why Grow Pacific Yerba Santa?

If you can get your hands on responsibly sourced Pacific yerba santa, here’s why it might be perfect for your garden:

  • Exceptional drought tolerance once established
  • Unique silvery foliage adds textural interest
  • Attracts pollinators with nectar-rich flowers
  • Perfect for Mediterranean and xeriscape gardens
  • Low maintenance once established
  • Supports native plant conservation efforts

Where Does It Fit in Your Landscape?

Pacific yerba santa is ideal for native California gardens, coastal landscapes, and Mediterranean-style designs. Its drought tolerance makes it perfect for xeriscape gardens, while its pollinator appeal fits beautifully into wildlife-friendly landscapes. The silvery foliage provides excellent contrast against darker-leaved plants and can serve as an eye-catching specimen or background plant.

Growing Conditions and Care

The good news is that Pacific yerba santa is relatively easy to grow once you understand its needs:

Climate: Thrives in USDA hardiness zones 9-11, making it suitable for warmer coastal and inland areas.

Sunlight: Prefers full sun exposure for best growth and flowering.

Soil: Needs well-draining soil and actually tolerates poor soils quite well. Avoid areas that stay wet or have heavy clay without amendments.

Water: Drought tolerant once established, but will need regular water during the first year while roots develop.

Planting and Care Tips

Ready to add this rare beauty to your garden? Here’s how to give it the best start:

  • Plant in fall or spring for best establishment
  • Dig a hole twice as wide as the root ball but no deeper
  • Water regularly the first year, then reduce to occasional deep watering
  • No fertilizer needed – it actually prefers lean soils
  • Minimal pruning required; just remove dead or damaged branches
  • Mulch around the base to conserve moisture and suppress weeds

The Bottom Line

Pacific yerba santa is a unique opportunity to grow something truly special while supporting native plant conservation. Its combination of drought tolerance, pollinator benefits, and distinctive appearance makes it a valuable addition to the right garden. Just remember to source it responsibly and enjoy the satisfaction of growing one of California’s rarest native treasures!

If you can’t find Pacific yerba santa or want alternatives, consider other native California Eriodictyon species that might be more readily available and less conservation-sensitive. Your local native plant society can help you find the best options for your specific area.

Pacific Yerba Santa

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

Solanales

Family

Hydrophyllaceae R. Br. - Waterleaf family

Genus

Eriodictyon Benth. - yerba santa

Species

Eriodictyon traskiae Eastw. - Pacific yerba santa

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