North America Native Plant

Elmer’s Erigeron

Botanical name: Erigeron elmeri

USDA symbol: EREL15

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Erigeron breweri A. Gray var. elmeri Greene (ERBRE)   

Elmer’s Erigeron: A Rare California Native Worth Growing Responsibly Meet Elmer’s erigeron (Erigeron elmeri), a charming little daisy that’s as rare as it is beautiful. This petite California native might not be the showiest plant in your garden, but what it lacks in size, it makes up for in ecological ...

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 ⚘

Elmer’s Erigeron: A Rare California Native Worth Growing Responsibly

Meet Elmer’s erigeron (Erigeron elmeri), a charming little daisy that’s as rare as it is beautiful. This petite California native might not be the showiest plant in your garden, but what it lacks in size, it makes up for in ecological value and understated charm. If you’re lucky enough to find responsibly sourced plants or seeds, this delightful perennial could become a treasured addition to your native plant collection.

What Makes Elmer’s Erigeron Special?

This unassuming little forb belongs to the sunflower family and produces delicate, daisy-like flowers that dance on slender stems from spring through summer. The blooms feature crisp white to pale pink petals radiating from cheerful yellow centers – a classic combination that never goes out of style. As a perennial, it returns year after year, slowly forming small colonies that add texture and seasonal interest to your landscape.

Elmer’s erigeron is what botanists call a forb, which is simply a fancy way of saying it’s a non-woody flowering plant. Don’t let the technical term fool you – this is just a sweet little wildflower that happens to pack a lot of ecological punch.

Where Does It Come From?

This California endemic calls the Golden State home, with populations scattered throughout the Sierra Nevada mountains. It’s a true local, having evolved specifically in California’s unique climate and soil conditions.

A Word About Rarity

Important note for responsible gardeners: Elmer’s erigeron has a conservation status of S3?, which indicates some level of rarity or uncertainty about its population status. If you’re interested in growing this plant, please only purchase from reputable native plant nurseries that propagate their stock rather than collecting from wild populations. Never collect plants or seeds from natural areas – this helps protect wild populations for future generations.

Why Grow Elmer’s Erigeron?

Here are several compelling reasons to consider this native gem:

  • Pollinator magnet: Those small flowers are perfectly sized for native bees, butterflies, and other beneficial insects
  • Low maintenance: Once established, it’s quite drought tolerant and requires minimal care
  • Authentic California character: Adds genuine local flavor to native plant gardens
  • Rock garden star: Perfect scale and growing requirements for rock gardens and xeriscaping
  • Extended bloom time: Flowers from spring through summer provide consistent color

Growing Conditions and Care

Elmer’s erigeron thrives in USDA hardiness zones 5-9, making it suitable for most of California and similar climates. Like many California natives, it has some specific preferences:

Light and Soil Requirements

  • Sunlight: Full sun to partial shade (morning sun with afternoon shade works well)
  • Soil: Well-draining soil is absolutely essential – this plant despises wet feet
  • pH: Adapts to various soil pH levels but prefers neutral to slightly alkaline conditions
  • Drainage: Cannot stress this enough – good drainage prevents root rot

Planting and Establishment Tips

Getting your Elmer’s erigeron off to a good start requires attention to timing and technique:

  • Plant in fall or early spring when temperatures are moderate
  • Dig holes slightly wider than the root ball but no deeper
  • Amend heavy clay soils with coarse sand or gravel for better drainage
  • Water regularly during the first growing season to establish roots
  • Apply a thin layer of gravel mulch to suppress weeds and conserve moisture

Ongoing Care

Once established, Elmer’s erigeron is refreshingly low-maintenance:

  • Watering: Reduce watering significantly after the first year – overwatering is more dangerous than underwatering
  • Fertilizing: Generally unnecessary and may promote excessive foliage growth
  • Deadheading: Optional, but removing spent flowers can encourage more blooms
  • Winter care: Cut back dead foliage in late fall or early spring

Perfect Garden Companions

Elmer’s erigeron plays well with other California natives that share similar growing requirements. Consider pairing it with other drought-tolerant perennials like penstemon, buckwheat, or native grasses for a cohesive, water-wise landscape that celebrates local ecology.

The Bottom Line

While Elmer’s erigeron might not be the easiest native plant to find, it’s certainly worth the search for dedicated California native plant enthusiasts. Its combination of ecological value, low maintenance requirements, and subtle beauty makes it a worthy addition to rock gardens, native landscapes, and xeriscapes. Just remember to source it responsibly and give it the well-draining conditions it craves. Your local pollinators will thank you, and you’ll have the satisfaction of growing a true California original.

Elmer’s Erigeron

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Erigeron L. - fleabane

Species

Erigeron elmeri (Greene) Greene - Elmer's erigeron

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