North America Native Plant

Carmel Ceanothus

Botanical name: Ceanothus griseus

USDA symbol: CEGR2

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Ceanothus griseus (Trel.) McMinn var. horizontalis McMinn (CEGRH)   

Carmel Ceanothus: A California Coastal Gem for Your Native Garden If you’re looking to add some serious flower power to your drought-tolerant landscape, meet Carmel ceanothus (Ceanothus griseus) – a stunning California native that’s practically bursting with personality. This evergreen shrub doesn’t just survive in tough conditions; it absolutely thrives, ...

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 ⚘

Carmel Ceanothus: A California Coastal Gem for Your Native Garden

If you’re looking to add some serious flower power to your drought-tolerant landscape, meet Carmel ceanothus (Ceanothus griseus) – a stunning California native that’s practically bursting with personality. This evergreen shrub doesn’t just survive in tough conditions; it absolutely thrives, rewarding patient gardeners with spectacular spring blooms that’ll make your neighbors stop and stare.

What Makes Carmel Ceanothus Special

Carmel ceanothus is a true California original, native specifically to the coastal regions around the Monterey Peninsula. This perennial shrub typically grows as a multi-stemmed woody plant, usually staying under 13-16 feet tall, though it can vary depending on growing conditions. What really sets it apart is its incredible spring flower display – dense clusters of small blue to purple blooms that create a stunning carpet of color.

Where It Calls Home

This beautiful native is found naturally in California’s coastal areas, where it has adapted to the unique Mediterranean climate. Its natural habitat gives us great clues about how to grow it successfully in our gardens.

Why Your Garden (and Local Wildlife) Will Love It

Carmel ceanothus is like hosting a pollinator party in your yard. The abundant, nectar-rich flowers are absolute magnets for:

  • Bees of all kinds
  • Butterflies
  • Other beneficial pollinators

Beyond its wildlife benefits, this shrub serves multiple practical purposes in the landscape. Its dense, mounding form makes it excellent for slope stabilization, while its drought tolerance once established makes it perfect for water-wise gardens.

Perfect Garden Roles

Carmel ceanothus shines in several landscape settings:

  • Mediterranean-style gardens
  • Native plant gardens
  • Drought-tolerant landscapes
  • Coastal gardens
  • Slope stabilization projects
  • Ground cover applications

Growing Conditions and Care

The good news? Carmel ceanothus isn’t particularly fussy once you understand its preferences. This shrub thrives in USDA hardiness zones 8-10 and loves:

  • Full sun: At least 6 hours of direct sunlight daily
  • Well-draining soil: Sandy or loamy soils work best – avoid heavy clay
  • Minimal water: Drought tolerant once established (usually after the first year)

Planting and Care Tips

Timing is everything with Carmel ceanothus. Plant in fall to give roots time to establish before the hot summer months. Here’s your success roadmap:

  • First year: Water regularly to help establish root system
  • After establishment: Minimal supplemental watering needed
  • Pruning: Light pruning after flowering if needed
  • Watering warning: Avoid overwatering – this is the quickest way to kill your plant

A Word About Conservation

Here’s something important to keep in mind: Carmel ceanothus has a conservation status that suggests it may be of some concern in its native habitat. This makes it even more valuable in gardens, but it also means you should be thoughtful about sourcing. Always purchase from reputable native plant nurseries that grow their plants from ethically collected seed or cuttings, rather than wild-harvested specimens.

The Bottom Line

Carmel ceanothus is a fantastic choice for gardeners who want to support local wildlife while enjoying a spectacular spring flower show – all with minimal water requirements. Its evergreen foliage provides year-round structure, while those incredible blue-purple blooms create a seasonal highlight that’s hard to beat. Just remember to source responsibly, give it well-draining soil and full sun, and resist the urge to overwater. Your patience will be rewarded with a gorgeous, low-maintenance shrub that truly embodies the beauty of California’s coastal flora.

Carmel Ceanothus

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

Rhamnales

Family

Rhamnaceae Juss. - Buckthorn family

Genus

Ceanothus L. - ceanothus

Species

Ceanothus griseus (Trel.) McMinn - Carmel ceanothus

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