North America Native Plant

Smooth Mountain Mahogany

Botanical name: Cercocarpus montanus var. minutiflorus

USDA symbol: CEMOM

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Cercocarpus minutiflorus Abrams (CEMI3)   

Smooth Mountain Mahogany: California’s Drought-Defying Native Shrub Meet the smooth mountain mahogany (Cercocarpus montanus var. minutiflorus), a California native that’s about to become your new favorite drought-tolerant shrub. Don’t let the mahogany name fool you – this isn’t a towering timber tree, but rather a charming, resilient shrub that knows ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Smooth Mountain Mahogany: California’s Drought-Defying Native Shrub

Meet the smooth mountain mahogany (Cercocarpus montanus var. minutiflorus), a California native that’s about to become your new favorite drought-tolerant shrub. Don’t let the mahogany name fool you – this isn’t a towering timber tree, but rather a charming, resilient shrub that knows how to thrive in tough conditions while looking effortlessly elegant.

What Makes Smooth Mountain Mahogany Special?

This perennial shrub is a true California original, native to the Golden State’s chaparral and oak woodland communities. As a multi-stemmed woody plant, it typically grows to a manageable 4-5 meters (13-16 feet) in height, making it perfect for residential landscapes. What really sets this plant apart is its incredible drought tolerance and low-maintenance nature – qualities that make it a gardener’s dream in water-wise landscapes.

Where Does It Call Home?

Smooth mountain mahogany is exclusively found in California, where it has adapted to the state’s Mediterranean climate over thousands of years. This native status means it’s perfectly suited to local growing conditions and supports regional wildlife.

Why You’ll Love Growing Smooth Mountain Mahogany

Here’s why this native shrub deserves a spot in your garden:

  • Water-wise wonder: Once established, it thrives with minimal irrigation
  • Pollinator magnet: Small white spring flowers attract native bees and other beneficial insects
  • Year-round interest: Evergreen foliage provides consistent structure, while feathery seed tails add textural appeal
  • Low maintenance: Requires little to no pruning or special care
  • Slope stabilizer: Excellent for erosion control on hillsides
  • Wildlife habitat: Provides shelter and food sources for native birds and small mammals

Perfect Garden Settings

Smooth mountain mahogany shines in:

  • Xerophytic (drought-tolerant) gardens
  • Native plant landscapes
  • Mediterranean-style designs
  • Hillside and slope plantings
  • Wildlife habitat gardens
  • Low-water commercial landscapes

Growing Conditions and Care

This adaptable native thrives in USDA hardiness zones 8-10, making it suitable for most of California’s climate zones. Here’s what it needs to flourish:

Sunlight and Soil

Give your smooth mountain mahogany full sun exposure and well-draining soil. It’s quite tolerant of various soil types, from sandy to clay, as long as water doesn’t sit around the roots.

Watering Wisdom

The key to success is establishing a deep root system in the first year or two. Water regularly during the first growing season, then gradually reduce frequency. Once established, this drought-tolerant native will thrive on natural rainfall in most California locations.

Planting Tips

  • Plant in fall for best establishment before summer heat
  • Dig a hole as deep as the root ball and twice as wide
  • Don’t amend the soil – let the plant adapt to existing conditions
  • Mulch around the base to retain moisture and suppress weeds
  • Space plants 6-8 feet apart to allow for mature spread

A Note on Rarity

While smooth mountain mahogany has a conservation status that’s currently undefined (S5T3?), it’s always best to source plants from reputable native plant nurseries that propagate from local seed sources. This ensures you’re getting genetically appropriate plants while supporting conservation efforts.

The Bottom Line

If you’re looking for a beautiful, low-maintenance native shrub that supports local wildlife while conserving water, smooth mountain mahogany checks all the boxes. It’s a perfect example of how native plants can provide both ecological benefits and garden appeal – proving that being environmentally responsible doesn’t mean sacrificing beauty in your landscape.

Ready to add this California native to your garden? Your local pollinators (and your water bill) will thank you!

Smooth Mountain Mahogany

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Rosales

Family

Rosaceae Juss. - Rose family

Genus

Cercocarpus Kunth - mountain mahogany

Species

Cercocarpus montanus Raf. - alderleaf mountain mahogany

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