North America Native Plant

Feather River Monardella

Botanical name: Monardella stebbinsii

USDA symbol: MOST3

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Feather River Monardella: A Rare California Native Worth Protecting If you’re drawn to rare and special native plants, the Feather River monardella (Monardella stebbinsii) might catch your attention. But before you start planning where to plant this California native, there’s something important you need to know about its conservation status. ...

Rare plant alert!

Region: Conservation status by state

Status: S2: 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) ⚘

Feather River Monardella: A Rare California Native Worth Protecting

If you’re drawn to rare and special native plants, the Feather River monardella (Monardella stebbinsii) might catch your attention. But before you start planning where to plant this California native, there’s something important you need to know about its conservation status.

What Makes This Plant Special

Feather River monardella is a perennial herb belonging to the mint family, and it’s as rare as it is beautiful. This low-growing forb lacks the woody stems you’d find on shrubs or trees, instead producing soft, herbaceous growth that dies back and regrows from underground parts each year.

As a member of the Monardella genus, this plant likely shares the aromatic qualities and small, clustered flowers that make its relatives so appealing to both gardeners and pollinators. However, what truly sets this species apart is its extremely limited distribution and precarious conservation status.

Where Does It Grow Naturally

Feather River monardella is endemic to California, meaning it grows naturally nowhere else in the world. Its common name gives away its connection to the Feather River region, making it a true local treasure in the areas where it occurs.

A Conservation Concern

Here’s where things get serious: Feather River monardella has a Global Conservation Status of S2, which means it’s considered Imperiled. This classification indicates the species faces extreme rarity or factors that make it especially vulnerable to disappearing entirely. Typically, plants with this status have only 6 to 20 known occurrences or very few remaining individuals in the wild.

This rarity status means that while this native plant could theoretically be a wonderful addition to California native gardens, its conservation needs must come first.

Should You Grow Feather River Monardella

If you’re interested in growing this rare native, proceed with extreme caution and responsibility. Here are the key considerations:

  • Source responsibly: Only obtain plants or seeds from reputable native plant nurseries that can verify their material doesn’t harm wild populations
  • Never collect from the wild: Taking plants or seeds from natural populations could push this imperiled species closer to extinction
  • Consider alternatives: Other Monardella species that are more common might give you similar garden benefits without conservation concerns
  • Support conservation: Consider donating to organizations working to protect rare California natives instead of or in addition to growing them

Growing Conditions (Limited Information Available)

Due to its rarity, detailed cultivation information for Feather River monardella is limited. However, based on its classification as a California native herb, it likely prefers:

  • Well-draining soils typical of California native habitats
  • Climate conditions similar to its native Feather River region
  • Minimal summer water once established, following typical California native plant patterns

If you do obtain this plant through responsible channels, treat it with the same care you’d give other precious California natives, providing good drainage and avoiding overwatering during dry seasons.

The Bigger Picture

Feather River monardella represents something larger than just another garden plant—it’s a reminder of California’s incredible but fragile botanical diversity. While most of us may never have the opportunity to grow this rare beauty, we can all play a role in supporting native plant conservation.

Consider exploring other members of the Monardella family that are more readily available and won’t strain wild populations. Your garden can still celebrate California’s native heritage while helping preserve the rarest species for future generations to discover and protect.

Sometimes the best way to appreciate a rare plant is to admire it from afar and work to ensure it survives in its natural habitat. Feather River monardella is definitely one of those special cases where conservation comes before cultivation.

Feather River Monardella

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

Monardella Benth. - monardella

Species

Monardella stebbinsii Hardham & Bartel - Feather River monardella

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