North America Native Plant

Three-lobed Rockdaisy

Botanical name: Perityle gracilis

USDA symbol: PEGR15

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Laphamia fastigiata Brandegee (LAFA3)  âš˜  Laphamia gracilis M.E. Jones (LAGR6)  âš˜  Perityle fastigiata (Brandegee) Shinners (PEFA3)   

Three-Lobed Rockdaisy: A Rare Desert Gem Worth Growing Responsibly Meet the three-lobed rockdaisy (Perityle gracilis), a delicate desert perennial that’s as charming as it is uncommon. This native wildflower might not be the showiest plant in your garden, but it brings something special to the table: authentic southwestern character and ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ 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 ⚘

Three-Lobed Rockdaisy: A Rare Desert Gem Worth Growing Responsibly

Meet the three-lobed rockdaisy (Perityle gracilis), a delicate desert perennial that’s as charming as it is uncommon. This native wildflower might not be the showiest plant in your garden, but it brings something special to the table: authentic southwestern character and the satisfaction of supporting a rare native species.

What Makes Three-Lobed Rockdaisy Special

Don’t let its modest size fool you – this little rockdaisy packs plenty of personality. As a native perennial herb, it produces small but cheerful daisy-like flowers with crisp white petals surrounding sunny yellow centers. The deeply lobed leaves (hence the three-lobed part of its name) create an attractive, fern-like texture that adds visual interest even when the plant isn’t blooming.

You might also see this plant listed under its former scientific names, including Laphamia gracilis or Perityle fastigiata, but Perityle gracilis is the current accepted name.

Where It Calls Home

Three-lobed rockdaisy is a true child of the American Southwest, naturally occurring in Arizona and Nevada. This native plant has adapted beautifully to the harsh desert conditions of these regions, making it a perfect choice for gardeners looking to create authentic southwestern landscapes.

Important Conservation Note

Here’s something crucial to know: three-lobed rockdaisy has a conservation status of S2S3, meaning it’s considered uncommon to moderately rare in its native range. This makes it even more valuable as a garden plant, but it also means we need to be extra responsible about how we source it.

If you choose to grow this rare beauty, please only purchase from reputable native plant nurseries that propagate their own stock rather than wild-collecting. Never collect seeds or plants from wild populations – let’s help this species thrive rather than putting additional pressure on natural populations.

Perfect for Desert Gardens

Three-lobed rockdaisy shines in:

  • Rock gardens and xeriscapes
  • Native plant collections
  • Desert-themed landscapes
  • Areas where you want authentic southwestern flora

Its compact size and delicate texture make it an excellent companion for other small desert perennials and an interesting contrast to bolder succulents and cacti.

Growing Three-Lobed Rockdaisy Successfully

The good news is that once you understand its needs, three-lobed rockdaisy is relatively easy to grow – it’s adapted to tough conditions, after all!

Climate Requirements: This desert native thrives in USDA hardiness zones 8-10, where it can handle both hot summers and occasional light frosts.

Sun and Soil: Give it full sun and, most importantly, excellent drainage. Think rocky, sandy, or gravelly soils that dry out quickly. Poor, lean soils are actually preferred – this isn’t a plant that wants to be pampered with rich garden soil.

Watering: Once established, three-lobed rockdaisy is quite drought tolerant. Water deeply but infrequently, and always avoid soggy conditions that can lead to root rot.

Planting and Care Tips

  • Plant in spring after the last frost date
  • Amend heavy clay soils with coarse sand and gravel for better drainage
  • Space plants appropriately for air circulation
  • Minimal fertilization needed – too much nutrition can actually weaken the plant
  • Protect from excessive winter moisture in areas with wet winters

Supporting Desert Wildlife

While we don’t have extensive data on all the wildlife benefits of three-lobed rockdaisy, native desert plants like this typically support local pollinators including native bees and butterflies. By growing rare native species, you’re helping maintain the complex web of relationships that desert ecosystems depend on.

Is Three-Lobed Rockdaisy Right for Your Garden?

Consider growing three-lobed rockdaisy if you:

  • Live in the southwestern United States (zones 8-10)
  • Want to support rare native plant conservation
  • Are creating a xeriscape or desert garden
  • Enjoy subtle, naturalistic beauty over flashy displays
  • Can provide excellent drainage and avoid overwatering

This might not be the plant for you if you prefer lush, tropical-looking gardens or live in areas with very wet winters and poor drainage.

Three-lobed rockdaisy proves that sometimes the most rewarding garden plants are the quiet ones – those that connect us to place, support conservation, and reward careful observation with their understated beauty. Just remember to source it responsibly and give it the well-drained conditions it craves!

Three-lobed 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 gracilis (M.E. Jones) Rydb. - three-lobed rockdaisy

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