North America Native Plant

Small Penstemon

Botanical name: Penstemon attenuatus var. pseudoprocerus

USDA symbol: PEATP5

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Penstemon attenuatus Douglas ex Lindl. ssp. pseudoprocerus (Rydb.) D.D. Keck (PEATP2)   

Small Penstemon: A Northwestern Native Worth Discovering If you’re looking to add authentic northwestern charm to your garden, small penstemon (Penstemon attenuatus var. pseudoprocerus) might just be the hidden gem you’ve been searching for. This native perennial brings the wild beauty of Idaho, Montana, and Wyoming right to your backyard, ...

Small Penstemon: A Northwestern Native Worth Discovering

If you’re looking to add authentic northwestern charm to your garden, small penstemon (Penstemon attenuatus var. pseudoprocerus) might just be the hidden gem you’ve been searching for. This native perennial brings the wild beauty of Idaho, Montana, and Wyoming right to your backyard, though you’ll need to do a bit of detective work to fully appreciate its potential.

What Is Small Penstemon?

Small penstemon is a perennial forb herb that’s native to the northwestern United States. Unlike woody shrubs or trees, this plant lacks significant woody tissue and keeps its growing points at or near ground level, helping it survive harsh mountain winters. It’s officially known by the botanical name Penstemon attenuatus var. pseudoprocerus, and you might also see it listed as Penstemon attenuatus ssp. pseudoprocerus in some references.

Where Does It Call Home?

This native beauty has carved out its niche in three northwestern states: Idaho, Montana, and Wyoming. It’s a true child of the American West, adapted to the unique conditions found in this region’s varied landscapes.

Why Choose Small Penstemon for Your Garden?

Here’s where things get a bit mysterious – and honestly, that’s part of the appeal! Small penstemon represents one of those lesser-known native plants that dedicated native gardeners love to discover and champion. While specific details about this particular variety are limited in common gardening resources, its native status makes it an excellent choice for several reasons:

  • It’s perfectly adapted to northwestern growing conditions
  • As a native plant, it supports local ecosystems
  • Perennial nature means it returns year after year
  • Low-maintenance once established

The Challenge (And Opportunity) of Growing Small Penstemon

Here’s the honest truth: specific growing information for Penstemon attenuatus var. pseudoprocerus is surprisingly scarce in mainstream gardening resources. This presents both a challenge and an opportunity for adventurous gardeners. You’ll likely need to:

  • Source plants or seeds from specialized native plant nurseries
  • Connect with local native plant societies for growing tips
  • Experiment with conditions similar to its native habitat

Making It Work in Your Garden

While we don’t have detailed cultivation guides for this specific variety, you can make educated guesses based on its native range and plant family. Consider these strategies:

  • Provide well-draining soil (most penstemons prefer this)
  • Choose a sunny to partially sunny location
  • Research the specific conditions in Idaho, Montana, and Wyoming where it naturally grows
  • Start with small test plantings to learn what works in your specific garden

Is Small Penstemon Right for Your Garden?

Small penstemon is perfect for gardeners who:

  • Live in the northwestern United States, particularly Idaho, Montana, or Wyoming
  • Want to grow true native plants
  • Enjoy the challenge of working with lesser-known species
  • Are willing to do some detective work to learn optimal growing conditions
  • Want to support local ecosystems with authentic native plants

However, this plant might not be ideal if you prefer well-documented plants with extensive growing guides, or if you live far outside its native range.

The Bottom Line

Small penstemon represents the frontier spirit of native gardening – there’s still so much to discover and learn! While it may require more research and experimentation than your typical garden center purchase, that’s exactly what makes it special. For gardeners in its native range who want to grow plants that truly belong, small penstemon offers the chance to be part of conservation efforts while adding authentic regional character to your landscape.

Ready to take on the challenge? Start by connecting with local native plant groups and specialized nurseries. They’ll likely have the best insights for successfully growing this intriguing northwestern native.

Small Penstemon

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 attenuatus Douglas ex Lindl. - sulphur penstemon

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