North America Native Plant

Petiolate Beardtongue

Botanical name: Penstemon petiolatus

USDA symbol: PEPE13

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Petiolate Beardtongue: A Hidden Gem for Southwestern Gardens If you’re looking to add a touch of native beauty to your garden while supporting local ecosystems, petiolate beardtongue (Penstemon petiolatus) might just be the perfect addition. This charming perennial brings delicate flowers and drought tolerance to landscapes across the American Southwest, ...

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 ⚘

Petiolate Beardtongue: A Hidden Gem for Southwestern Gardens

If you’re looking to add a touch of native beauty to your garden while supporting local ecosystems, petiolate beardtongue (Penstemon petiolatus) might just be the perfect addition. This charming perennial brings delicate flowers and drought tolerance to landscapes across the American Southwest, though its relative rarity makes it a special find indeed.

What Makes Petiolate Beardtongue Special?

Petiolate beardtongue is a native perennial herb that calls the southwestern United States home. As a member of the beloved Penstemon family, it shares the characteristic tubular flowers that make beardtongues so popular with both gardeners and pollinators. This particular species grows naturally in Arizona, Nevada, and Utah, where it has adapted beautifully to the region’s challenging growing conditions.

What sets this plant apart from its more common cousins is its conservation status. With a Global Conservation Status of S2S3, petiolate beardtongue is considered somewhat rare, making it a truly special addition to any garden lucky enough to host it.

Garden Appeal and Landscape Role

Don’t let its diminutive size fool you – petiolate beardtongue packs a visual punch. The plant produces clusters of small, tubular flowers that typically range from pink to purple hues. These blooms create a delicate, almost ethereal effect in the garden, especially when planted in groups or allowed to naturalize in appropriate settings.

As a forb (a non-woody flowering plant), petiolate beardtongue works wonderfully in several landscape contexts:

  • Rock gardens where its delicate appearance contrasts beautifully with stone
  • Xeriscapes and drought-tolerant landscapes
  • Native plant gardens focused on southwestern flora
  • Desert-themed landscapes
  • Pollinator gardens supporting local wildlife

Pollinator Paradise

Like most Penstemons, petiolate beardtongue is a pollinator magnet. The tubular flowers are perfectly designed to attract hummingbirds, whose long beaks and tongues can easily access the nectar within. Native bees and butterflies also frequent these blooms, making this plant an excellent choice for gardeners interested in supporting local wildlife.

Growing Conditions and Care

One of the best things about petiolate beardtongue is its low-maintenance nature once established. This tough little plant thrives in conditions that would stress many other perennials:

  • Sunlight: Full sun exposure
  • Soil: Well-draining soil is essential; avoid heavy clay or waterlogged conditions
  • Water: Drought tolerant once established; minimal supplemental watering needed
  • Hardiness: Suitable for USDA zones 4-8

Planting and Care Tips

Successfully growing petiolate beardtongue starts with choosing the right location and planting time:

  • Plant in spring after the last frost date
  • Ensure excellent drainage – this plant won’t tolerate wet feet
  • Space plants according to their mature size to allow for good air circulation
  • Water regularly during the first growing season to help establishment
  • Once established, water sparingly – too much moisture can actually harm the plant
  • Deadhead spent flowers to encourage continued blooming throughout the season
  • Allow some flowers to go to seed if you want the plant to self-sow

A Word About Responsible Sourcing

Here’s where we need to have an important conversation. Because petiolate beardtongue has a conservation status indicating some rarity concerns, it’s crucial to source this plant responsibly. If you’re interested in adding it to your garden, please:

  • Purchase from reputable native plant nurseries that grow their stock from seed
  • Never collect plants from wild populations
  • Consider participating in seed collection programs if available in your area
  • Share seeds with other gardeners to help increase cultivation

Is Petiolate Beardtongue Right for Your Garden?

This lovely native is an excellent choice for gardeners in its native range who want to:

  • Support local ecosystems and pollinators
  • Create low-water, sustainable landscapes
  • Add delicate beauty without high maintenance requirements
  • Grow something truly special and somewhat rare

However, it might not be the best fit if you’re looking for a bold, showy centerpiece plant or if you garden in areas with heavy clay soil and poor drainage.

Petiolate beardtongue offers gardeners a wonderful opportunity to grow something both beautiful and meaningful. By choosing this native species, you’re not only adding charm to your landscape but also participating in the conservation of a somewhat rare southwestern treasure. With minimal care requirements and maximum pollinator appeal, it’s a win-win for both gardeners and local ecosystems.

Petiolate Beardtongue

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

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Penstemon Schmidel - beardtongue

Species

Penstemon petiolatus Brandegee - petiolate beardtongue

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