North America Native Plant

Cochise Rockdaisy

Botanical name: Perityle cochisensis

USDA symbol: PECO17

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Laphamia cochisensis Niles (LACO11)   

Cochise Rockdaisy: A Rare Desert Gem Worth Protecting Meet the Cochise rockdaisy (Perityle cochisensis), one of Arizona’s most precious native wildflowers. This diminutive desert beauty might be small in stature, but it’s huge in conservation importance. If you’re passionate about preserving rare native plants and have the right growing conditions, ...

Rare plant alert!

Region: Conservation status by state

Status: S1: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘

Cochise Rockdaisy: A Rare Desert Gem Worth Protecting

Meet the Cochise rockdaisy (Perityle cochisensis), one of Arizona’s most precious native wildflowers. This diminutive desert beauty might be small in stature, but it’s huge in conservation importance. If you’re passionate about preserving rare native plants and have the right growing conditions, this little charmer could be a meaningful addition to your specialized native garden.

What Makes Cochise Rockdaisy Special?

The Cochise rockdaisy is a perennial forb that produces delicate white daisy-like flowers with cheerful yellow centers. Despite its modest size, this plant packs a punch when it comes to desert charm. Its compact growth habit and fall blooming period make it a unique specimen that stands out in the often harsh landscape of the Sonoran Desert.

Also known by its synonym Laphamia cochisensis, this little rockdaisy belongs to the sunflower family and shares the resilient, drought-adapted characteristics that make desert plants so fascinating.

Where Does It Come From?

This rare native is found exclusively in Arizona, making it a true regional treasure. Its extremely limited range is centered in Cochise County, where it has adapted to very specific rocky, desert conditions.

A Word of Caution: This Plant Needs Our Help

Important conservation note: Cochise rockdaisy has a Global Conservation Status of S1, meaning it’s critically imperiled. With typically five or fewer known occurrences and very few remaining individuals in the wild, this species is hanging on by a thread. If you’re interested in growing this plant, please only obtain seeds or plants from reputable native plant societies or botanical gardens that practice responsible propagation.

Growing Cochise Rockdaisy: Not for the Faint of Heart

Let’s be honest – this isn’t a plant for beginners or casual gardeners. Cochise rockdaisy is suited for USDA hardiness zones 8-10 and demands very specific conditions that mirror its natural desert habitat.

Ideal Growing Conditions

  • Soil: Extremely well-draining rocky or sandy soil – think desert gravel garden
  • Sunlight: Full sun exposure
  • Water: Drought tolerant once established; overwatering is the kiss of death
  • Climate: Hot, dry summers with mild winters

Planting and Care Tips

  • Plant in raised beds or containers with excellent drainage
  • Use a soil mix heavy on sand, gravel, and pumice
  • Water sparingly during establishment, then rely on natural rainfall
  • Protect from excessive moisture, especially during winter months
  • Avoid fertilizers – these desert natives prefer lean soils

Garden Design and Landscape Role

Cochise rockdaisy shines in specialized settings like:

  • Rock gardens with other rare Arizona natives
  • Desert plant collections
  • Xerophytic demonstration gardens
  • Conservation-focused native plant displays

This isn’t a plant for traditional perennial borders or mixed plantings. Think of it more as a living museum piece that requires curator-level care and attention.

Wildlife and Pollinator Benefits

While small, Cochise rockdaisy provides nectar for specialized desert pollinators, including small native bees and butterflies that have co-evolved with Arizona’s unique flora. By growing this plant responsibly, you’re supporting not just the species itself but the intricate web of desert life it supports.

Should You Grow Cochise Rockdaisy?

The short answer is: only if you’re seriously committed to conservation and have the specific expertise and conditions this plant requires. This isn’t a casual garden addition – it’s a conservation effort that requires dedication, proper sourcing, and specialized growing conditions.

If you’re drawn to rare Arizona natives but want something more forgiving, consider other regional treasures like desert marigold, brittlebush, or penstemon species that are less critically imperiled.

For those ready to take on the challenge, growing Cochise rockdaisy can be deeply rewarding. You’ll be participating in the preservation of one of Arizona’s rarest wildflowers while adding a truly unique specimen to your desert garden. Just remember: with great rarity comes great responsibility.

Cochise 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 cochisensis (Niles) A. Powell - Cochise rockdaisy

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