North America Native Plant

Cardinal Beardtongue

Botanical name: Penstemon cardinalis

USDA symbol: PECA15

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Cardinal Beardtongue: A Rare Red Gem for Your Native Garden If you’re looking to add a splash of brilliant red to your native plant garden while supporting local wildlife, cardinal beardtongue might just be the perfect choice. This striking perennial brings both beauty and ecological value to southwestern landscapes, though ...

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 ⚘

Cardinal Beardtongue: A Rare Red Gem for Your Native Garden

If you’re looking to add a splash of brilliant red to your native plant garden while supporting local wildlife, cardinal beardtongue might just be the perfect choice. This striking perennial brings both beauty and ecological value to southwestern landscapes, though its rarity makes it a truly special addition.

What is Cardinal Beardtongue?

Cardinal beardtongue (Penstemon cardinalis) is a native perennial forb that belongs to the snapdragon family. As a herbaceous plant, it lacks woody stems but comes back year after year from its root system. The name beardtongue comes from the fuzzy stamen that resembles a tiny beard poking out from the flower’s throat – a charming characteristic shared by all penstemons.

Where Does It Grow Naturally?

This beautiful wildflower is native to the southwestern United States, specifically found in New Mexico and Texas. Its natural range reflects its adaptation to the unique climate and soil conditions of this region, making it perfectly suited for gardens in these areas.

A Plant Worth Protecting

Here’s something important every gardener should know: cardinal beardtongue has a Global Conservation Status of S3, which means it’s considered vulnerable. With typically only 21 to 100 occurrences and between 3,000 and 10,000 individuals in the wild, this species needs our help. If you choose to grow cardinal beardtongue, please ensure you’re purchasing from reputable native plant nurseries that source their material responsibly – never collect from wild populations.

Why Grow Cardinal Beardtongue?

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

  • Stunning visual impact: The bright red tubular flowers create eye-catching displays from spring through early summer
  • Pollinator magnet: Those red tubular blooms are perfectly designed to attract hummingbirds and native bees
  • Low maintenance: Once established, it’s quite drought tolerant and requires minimal care
  • Conservation value: By growing it responsibly, you’re helping preserve genetic diversity of this vulnerable species
  • Native plant gardening: It’s perfectly adapted to southwestern growing conditions

Perfect Garden Companions

Cardinal beardtongue shines in native plant gardens, xerophytic landscapes, and pollinator gardens. It works beautifully as an accent plant or grouped with other native southwestern species. Consider pairing it with other drought-tolerant natives for a stunning display that supports local ecosystems.

Growing Conditions and Care

Like most southwestern natives, cardinal beardtongue thrives in USDA hardiness zones 7-9. Here’s what it needs to flourish:

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soil is essential – avoid heavy clay or constantly moist conditions
  • Water: Drought tolerant once established, but appreciates occasional deep watering during extreme dry spells
  • Planting time: Fall or early spring for best establishment

Planting and Care Tips

Getting cardinal beardtongue established successfully requires a gentle touch:

  • Plant in fall when temperatures are cooling but soil is still warm
  • Ensure excellent drainage – soggy soil is this plant’s biggest enemy
  • Water regularly the first season, then reduce frequency as the plant establishes
  • Avoid fertilizers, which can encourage excessive growth and reduce flowering
  • Deadhead spent flowers to encourage continued blooming
  • Allow some seed heads to remain for wildlife and potential self-seeding

The Bottom Line

Cardinal beardtongue offers southwestern gardeners a chance to grow something truly special – a beautiful, pollinator-friendly native that’s becoming increasingly rare in the wild. While its vulnerable status means we must be thoughtful about sourcing, responsible cultivation can actually help conservation efforts. If you can find ethically sourced plants and provide the right growing conditions, cardinal beardtongue will reward you with stunning red blooms and the satisfaction of supporting native biodiversity.

Just remember: this isn’t a plant for every garden or every gardener. It needs specific conditions and responsible sourcing. But for those willing to meet its needs, cardinal beardtongue offers a unique opportunity to grow something both beautiful and meaningful.

Cardinal 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 cardinalis Wooton & Standl. - cardinal beardtongue

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