North America Native Plant

Broadleaf Beardtongue

Botanical name: Penstemon platyphyllus

USDA symbol: PEPL4

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Broadleaf Beardtongue: A Hidden Gem for Water-Wise Gardens If you’re looking for a drought-tolerant native that’s both beautiful and rare, let me introduce you to broadleaf beardtongue (Penstemon platyphyllus). This little-known perennial is a true treasure of the American West, though you’ll need to do some detective work to find ...

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 ⚘

Broadleaf Beardtongue: A Hidden Gem for Water-Wise Gardens

If you’re looking for a drought-tolerant native that’s both beautiful and rare, let me introduce you to broadleaf beardtongue (Penstemon platyphyllus). This little-known perennial is a true treasure of the American West, though you’ll need to do some detective work to find it for your garden.

What Makes Broadleaf Beardtongue Special?

Broadleaf beardtongue is a native perennial forb that belongs to the snapdragon family. Unlike its woody cousins, this herbaceous beauty dies back to ground level each winter and emerges fresh each spring. What sets it apart from other penstemons is right there in the name – those distinctively broad leaves that give the plant its common name.

This native gem produces stunning tubular flowers in shades of purple to blue, creating a perfect landing pad for hummingbirds and native bees. The blooms appear on sturdy stems above the foliage, creating an eye-catching display that’s both elegant and wild-looking.

Where Does It Call Home?

Broadleaf beardtongue is native to the Great Basin region, specifically Nevada and Utah. This limited geographic range makes it a true regional specialty – think of it as the native plant equivalent of a small-batch craft beer. It’s perfectly adapted to the challenging conditions of the intermountain West, where hot, dry summers and cold winters are the norm.

A Word About Rarity

Here’s something important to know: broadleaf beardtongue has a Global Conservation Status of S2S3, which means it’s considered somewhat rare. While this makes it extra special, it also means you’ll need to be a responsible gardener. If you decide to grow this beauty, make sure you source it from reputable native plant nurseries that propagate their stock rather than collecting from wild populations.

Why Grow Broadleaf Beardtongue?

There are several compelling reasons to include this native in your landscape:

  • It’s incredibly drought tolerant once established – perfect for water-wise gardening
  • The flowers are magnets for hummingbirds, native bees, and butterflies
  • It’s low maintenance and doesn’t need pampering
  • You’ll be supporting native biodiversity and helping preserve a rare species
  • It adds authentic regional character to Great Basin gardens

Perfect Garden Companions

Broadleaf beardtongue shines in rock gardens, xeriscaping projects, and native plant landscapes. It’s right at home alongside other Great Basin natives like sagebrush, Indian paintbrush, and native bunch grasses. The compact growth habit makes it perfect for tucking into crevices in rock walls or using as a specimen plant in gravel gardens.

This isn’t a plant for formal English gardens or high-water landscapes – it’s all about embracing the natural beauty of the American West.

Growing Conditions That Make It Happy

Think desert mountain when planning for broadleaf beardtongue:

  • Sunlight: Full sun is essential – at least 6-8 hours daily
  • Soil: Well-draining soil is absolutely critical; clay or soggy conditions will kill it
  • Water: Drought tolerant once established, but benefits from occasional deep watering during extreme dry spells
  • Climate: Hardy in USDA zones 4-8, handling both cold winters and hot summers

Planting and Care Tips

Getting broadleaf beardtongue established is straightforward if you remember its mountain origins:

  • Plant in spring after the last frost date
  • Improve heavy clay soils with coarse sand or gravel for drainage
  • Water regularly the first growing season to help establish roots
  • After establishment, water deeply but infrequently
  • Avoid fertilizers – this plant prefers lean, rocky soils
  • Deadhead spent flowers to potentially encourage more blooms
  • Cut back dead stems in late fall or early spring

The Bottom Line

Broadleaf beardtongue isn’t for every garden or every gardener. It requires specific conditions and responsible sourcing due to its rarity. But if you’re in Nevada or Utah, have well-draining soil, and want to support native biodiversity while creating a stunning water-wise landscape, this rare beauty might just be your next gardening adventure.

Just remember – with great rarity comes great responsibility. Source it ethically, grow it well, and maybe even try your hand at collecting seeds to share with other native plant enthusiasts. After all, the best way to protect rare plants is to grow more of them – responsibly.

Broadleaf 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 platyphyllus Rydb. - broadleaf beardtongue

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