North America Native Plant

Spreading Leastdaisy

Botanical name: Chaetopappa effusa

USDA symbol: CHEF

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Keerlia effusa A. Gray (KEEF)   

Spreading Leastdaisy: A Rare Texas Native Worth Protecting in Your Garden Meet the spreading leastdaisy (Chaetopappa effusa), a charming little Texas native that’s as unique as its quirky name suggests. This delightful perennial herb might be small in stature, but it packs a big punch when it comes to supporting ...

Rare plant alert!

Region: Conservation status by state

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

Spreading Leastdaisy: A Rare Texas Native Worth Protecting in Your Garden

Meet the spreading leastdaisy (Chaetopappa effusa), a charming little Texas native that’s as unique as its quirky name suggests. This delightful perennial herb might be small in stature, but it packs a big punch when it comes to supporting local ecosystems and adding subtle beauty to native plant gardens.

What Makes Spreading Leastdaisy Special?

Don’t let the name fool you – this isn’t your grandmother’s garden daisy. The spreading leastdaisy is a true Texas original, found exclusively in the Lone Star State. As a forb (that’s botanist-speak for a non-woody flowering plant), it creates a low-growing, spreading carpet of tiny white daisy-like flowers with bright yellow centers that bloom throughout the growing season.

This little charmer is scientifically known as Chaetopappa effusa, though you might occasionally see it listed under its synonym Keerlia effusa in older gardening references.

Where Does It Call Home?

The spreading leastdaisy is endemic to Texas, meaning it grows naturally nowhere else on Earth. You’ll find it scattered across central and south-central Texas, where it has adapted to the region’s unique climate and soil conditions.

A Conservation Concern Worth Addressing

Here’s where things get serious for a moment. The spreading leastdaisy carries a Global Conservation Status of S3, which means it’s considered vulnerable. With typically only 21 to 100 occurrences and between 3,000 to 10,000 individuals remaining in the wild, this species faces real conservation challenges.

Important: If you’re interested in growing this rare beauty, please only purchase from reputable native plant nurseries that propagate their stock responsibly. Never collect plants from wild populations.

Why Gardeners Love Spreading Leastdaisy

Despite its rarity in the wild, spreading leastdaisy makes an excellent garden companion for several reasons:

  • Pollinator magnet: Those small but numerous flowers attract native bees, beneficial insects, and butterflies
  • Low maintenance: Once established, it’s incredibly drought tolerant and requires minimal care
  • Ground cover potential: Its spreading habit makes it perfect for filling in spaces in native plant gardens
  • Authentic Texas character: You’re literally planting a piece of Texas botanical history

Perfect Garden Settings

Spreading leastdaisy thrives in:

  • Native plant gardens and naturalized landscapes
  • Rock gardens and xeriscapes
  • Areas where you want low-maintenance ground cover
  • Pollinator gardens focused on native species

Growing Spreading Leastdaisy Successfully

Hardiness: Suitable for USDA zones 8-10, making it perfect for most of Texas and similar climates.

Light requirements: Give it full sun for best flowering and growth.

Soil needs: Well-drained soil is absolutely essential. This plant evolved in areas with excellent drainage and won’t tolerate soggy conditions.

Watering: Here’s the beauty of native plants – once established, spreading leastdaisy is remarkably drought tolerant. Water regularly the first growing season to help establish roots, then back off. Overwatering is more likely to harm this plant than underwatering.

Planting and Care Tips

  • Plant in spring after the last frost
  • Space plants according to their mature spread (research specific cultivar spacing)
  • Mulch lightly to retain moisture during establishment, but avoid heavy mulches that retain too much water
  • Deadhead spent flowers to encourage continued blooming, though leaving some seed heads provides food for birds
  • Minimal fertilization needed – native plants typically prefer lean soils

A Plant Worth Preserving

By choosing to grow spreading leastdaisy in your garden, you’re doing more than just adding a pretty flower – you’re participating in conservation. Every responsibly grown plant helps preserve the genetic diversity of this vulnerable species while creating habitat for the native pollinators and wildlife that depend on it.

Remember, the best gardens don’t just look good; they do good too. Spreading leastdaisy offers both beauty and purpose, making it a worthy addition to any Texas native plant enthusiast’s collection.

Spreading Leastdaisy

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

Chaetopappa DC. - leastdaisy

Species

Chaetopappa effusa (A. Gray) Shinners - spreading leastdaisy

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