North America Native Plant

Grand Canyon Rockdaisy

Botanical name: Perityle congesta

USDA symbol: PECO18

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Laphamia congesta M.E. Jones (LACO10)   

Grand Canyon Rockdaisy: A Rare Desert Gem for Your Native Garden Looking for a charming, low-maintenance addition to your desert or rock garden? Meet the Grand Canyon rockdaisy (Perityle congesta), a delightful little perennial that’s as tough as the canyon walls it calls home. This native beauty might just be ...

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 ⚘

Grand Canyon Rockdaisy: A Rare Desert Gem for Your Native Garden

Looking for a charming, low-maintenance addition to your desert or rock garden? Meet the Grand Canyon rockdaisy (Perityle congesta), a delightful little perennial that’s as tough as the canyon walls it calls home. This native beauty might just be the perfect solution for those tricky dry spots in your landscape.

What Makes Grand Canyon Rockdaisy Special?

The Grand Canyon rockdaisy is a true American native, naturally occurring in Arizona and Nevada. This compact perennial shrub stays nice and tidy, typically growing less than 1.5 feet tall and never exceeding 3 feet at maturity. Its low-growing, mounding habit makes it an excellent choice for gardeners who want maximum impact with minimal fuss.

From spring through fall, this little powerhouse produces cheerful yellow daisy-like flowers that brighten up even the most challenging desert conditions. The blooms are perfectly sized to attract native pollinators, including small bees and butterflies, making it a valuable addition to any wildlife-friendly garden.

A Word About Conservation

Before we dive into growing tips, there’s something important to know: Grand Canyon rockdaisy has a Global Conservation Status of S3, meaning it’s considered vulnerable throughout its range. This designation typically indicates 21 to 100 occurrences or between 3,000 and 10,000 individuals in the wild. If you’re interested in adding this rare beauty to your garden, please make sure to source it responsibly from reputable native plant nurseries or seed suppliers who ethically collect their material.

Perfect for These Garden Styles

Grand Canyon rockdaisy shines in several landscape applications:

  • Rock gardens and crevice plantings
  • Desert and xeriscape designs
  • Native plant gardens
  • Low-water landscapes
  • Slope stabilization projects
  • Container gardens (with proper drainage)

Growing Conditions and Care

One of the best things about Grand Canyon rockdaisy is how easy it is to grow once you understand its needs. This desert native thrives in USDA hardiness zones 8-10 and prefers conditions that mimic its natural habitat.

Sun Requirements: Full sun is essential for best flowering and compact growth.

Soil Needs: Well-draining rocky or sandy soil is crucial. This plant absolutely cannot tolerate wet feet, so if you have clay soil, consider raised beds or containers.

Water Requirements: Extremely drought tolerant once established. Water deeply but infrequently during the first growing season, then reduce watering significantly.

Planting and Care Tips

Spring is the ideal time to plant Grand Canyon rockdaisy. Here are some key tips for success:

  • Choose a location with excellent drainage – this cannot be overstated
  • Dig a hole slightly wider than the root ball but no deeper
  • Backfill with native soil or add coarse sand if drainage is questionable
  • Water thoroughly after planting, then gradually reduce frequency
  • Skip the fertilizer – this plant prefers lean, nutrient-poor soil
  • Mulch lightly with gravel or decomposed granite rather than organic mulch

Wildlife and Pollinator Benefits

Despite its small stature, Grand Canyon rockdaisy punches above its weight when it comes to supporting local wildlife. The abundant small flowers provide nectar for native bees, small butterflies, and other desert pollinators throughout its long blooming season. Its compact size also makes it an excellent choice for pollinator gardens where space is at a premium.

Is Grand Canyon Rockdaisy Right for Your Garden?

This charming native is perfect for gardeners who:

  • Live in hot, arid climates (zones 8-10)
  • Want to support native wildlife and pollinators
  • Prefer low-maintenance, drought-tolerant plants
  • Are creating desert or rock garden landscapes
  • Want to grow rare native plants responsibly

However, Grand Canyon rockdaisy might not be the best choice if you have heavy clay soil, live in a humid climate, or prefer plants that need regular watering. Remember, this is a desert specialist that thrives on neglect once established.

By choosing to grow Grand Canyon rockdaisy from responsibly sourced material, you’re not only adding a beautiful, low-maintenance plant to your garden but also helping to preserve this vulnerable species for future generations. It’s a small but meaningful way to contribute to native plant conservation while enjoying the unique beauty of America’s desert flora.

Grand Canyon Rockdaisy

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

Perityle Benth. - rockdaisy

Species

Perityle congesta (M.E. Jones) Shinners - Grand Canyon rockdaisy

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