North America Native Plant

Beardtongue

Botanical name: Penstemon ×peirsonii

USDA symbol: PEPE32

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Peirson’s Beardtongue: A Rare California Native Worth Knowing If you’re a native plant enthusiast always on the hunt for something truly special, Penstemon ×peirsonii might just pique your interest. This particular beardtongue is one of those plants that makes you feel like you’re in on a well-kept secret – mainly ...

Peirson’s Beardtongue: A Rare California Native Worth Knowing

If you’re a native plant enthusiast always on the hunt for something truly special, Penstemon ×peirsonii might just pique your interest. This particular beardtongue is one of those plants that makes you feel like you’re in on a well-kept secret – mainly because there’s not a whole lot of chatter about it in gardening circles.

What Makes This Beardtongue Special?

Penstemon ×peirsonii is a hybrid beardtongue that’s native to California, making it a true Golden State original. The × in its name is botanist-speak for this is a natural hybrid, which means Mother Nature did some mixing and matching to create this particular plant. It’s a perennial forb, which is a fancy way of saying it’s an herbaceous plant that comes back year after year without any woody stems to speak of.

Where You’ll Find It Growing Wild

This beardtongue calls California home, though specific information about exactly where in the state it naturally occurs is surprisingly scarce. Like many specialized native plants, it likely has very particular habitat preferences that limit where it thrives in the wild.

The Mystery Factor

Here’s where things get interesting (and a bit frustrating for us plant nerds): detailed information about Penstemon ×peirsonii is remarkably hard to come by. This could mean a few things – it might be quite rare, very localized, or simply hasn’t caught the attention of many botanists or gardeners yet. Sometimes the most fascinating plants are the ones flying under the radar.

Should You Try Growing It?

The honest answer is: it’s complicated. While this beardtongue is undoubtedly a legitimate California native, the lack of readily available information makes it challenging to provide solid growing advice. Here’s what we do know:

  • It’s a perennial, so once established, it should return each year
  • As a California native, it’s likely adapted to the state’s Mediterranean climate
  • Being a hybrid, it may have unique characteristics that differ from its parent species

The Practical Approach

If you’re determined to grow this particular beardtongue, your best bet is to:

  • Contact specialized native plant nurseries in California
  • Reach out to local botanical gardens or native plant societies
  • Consider growing other well-documented California penstemon species instead

Alternative Beardtongue Options

While we wait for more information about Penstemon ×peirsonii to surface, California gardeners have plenty of other spectacular native penstemons to choose from. Species like Penstemon centranthifolius (scarlet bugler) or Penstemon spectabilis (showy penstemon) are well-documented, widely available, and absolutely stunning in the garden.

The Bottom Line

Penstemon ×peirsonii represents one of those intriguing gaps in our gardening knowledge. It’s a reminder that even in our well-documented world, there are still native plants waiting to be fully understood and appreciated. While it might not be the easiest plant to source or grow right now, it certainly adds to the rich tapestry of California’s native flora.

For now, consider it a plant to keep on your botanical wish list while exploring the many other wonderful California native penstemons that are readily available and well-understood. Who knows? Maybe in a few years, we’ll know much more about this mysterious beardtongue and how to successfully welcome it into our gardens.

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 ×peirsonii Munz & I.M. Johnst. (pro sp.) [grinnellii × speciosus] - beardtongue

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