North America Native Plant

Gibbens’ Beardtongue

Botanical name: Penstemon gibbensii

USDA symbol: PEGI4

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Gibbens’ Beardtongue: A Rare Rocky Mountain Native Worth Protecting If you’re passionate about native gardening and love supporting rare wildflowers, Gibbens’ beardtongue (Penstemon gibbensii) might just capture your heart. This perennial beauty is a true treasure of the American West, but there’s something important you need to know before adding ...

Rare plant alert!

Region: Conservation status by state

Status: S1S2: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ 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) ⚘

Gibbens’ Beardtongue: A Rare Rocky Mountain Native Worth Protecting

If you’re passionate about native gardening and love supporting rare wildflowers, Gibbens’ beardtongue (Penstemon gibbensii) might just capture your heart. This perennial beauty is a true treasure of the American West, but there’s something important you need to know before adding it to your garden wish list.

A Rare Gem of the Rocky Mountain Region

Gibbens’ beardtongue is a native perennial forb that calls the rugged landscapes of Colorado, Utah, and Wyoming home. As a herbaceous plant without significant woody growth, it returns year after year from its underground root system, bringing consistent beauty to the garden.

However, this stunning wildflower comes with a conservation concern. Penstemon gibbensii has a Global Conservation Status of S1S2, indicating it’s quite rare in the wild. This rarity status means we need to be extra thoughtful about how we approach growing this species.

What Makes This Beardtongue Special

Like its Penstemon cousins, Gibbens’ beardtongue produces the characteristic tubular flowers that make this genus so beloved by pollinators and gardeners alike. The purple-blue blooms appear in summer, creating a spectacular display that attracts:

  • Native bees
  • Hummingbirds
  • Butterflies

These pollinator relationships make this plant an excellent choice for supporting local ecosystems, especially in its native range.

Growing Gibbens’ Beardtongue Responsibly

Given its rare status, if you’re considering growing Penstemon gibbensii, please ensure you source it responsibly. This means:

  • Purchasing only from reputable native plant nurseries
  • Ensuring plants are nursery-propagated, not wild-collected
  • Never harvesting seeds or plants from wild populations

When grown in appropriate conditions, this hardy perennial thrives in USDA zones 4-7, making it suitable for much of the mountain West and northern regions.

Ideal Growing Conditions

Gibbens’ beardtongue appreciates conditions similar to its native Rocky Mountain habitat:

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soils (essential for preventing root rot)
  • Water: Drought tolerant once established; avoid overwatering
  • Garden style: Perfect for rock gardens, native plant gardens, and xerophytic landscapes

Planting and Care Tips

Spring is the ideal time to plant Gibbens’ beardtongue. Once established, this low-maintenance native requires minimal intervention:

  • Plant in well-draining soil to prevent winter rot
  • Water regularly the first year to establish roots
  • Reduce watering significantly once established
  • Avoid fertilizing, as native plants typically prefer lean soils

A Conservation-Minded Choice

Growing Gibbens’ beardtongue isn’t just about adding beauty to your garden—it’s about participating in conservation efforts. By growing this rare native responsibly, you’re helping preserve genetic diversity and supporting the specialized pollinators that depend on native penstemons.

If you can’t find responsibly sourced Penstemon gibbensii, consider other native penstemons from your region instead. There are many beautiful beardtongue species that can provide similar ecological benefits without the conservation concerns.

Remember, every native plant we grow—especially rare ones like Gibbens’ beardtongue—is a small but meaningful step toward preserving our natural heritage for future generations.

Gibbens’ 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 gibbensii Dorn - Gibbens' beardtongue

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