North America Native Plant

Richardson’s Penstemon

Botanical name: Penstemon richardsonii var. richardsonii

USDA symbol: PERIR

Life cycle: perennial

Habit: subshrub

Native status: Native to Canada âš˜ Native to the lower 48 states  

Richardson’s Penstemon: A Pacific Northwest Native Worth Growing If you’re looking for a low-maintenance perennial that’ll have hummingbirds doing backflips in your garden, meet Richardson’s penstemon (Penstemon richardsonii var. richardsonii). This charming native wildflower might not have the flashiest name, but it’s got personality in spades and a work ethic ...

Richardson’s Penstemon: A Pacific Northwest Native Worth Growing

If you’re looking for a low-maintenance perennial that’ll have hummingbirds doing backflips in your garden, meet Richardson’s penstemon (Penstemon richardsonii var. richardsonii). This charming native wildflower might not have the flashiest name, but it’s got personality in spades and a work ethic that’ll make you wonder why you ever bothered with high-maintenance plants.

What Makes Richardson’s Penstemon Special?

Richardson’s penstemon is a true Pacific Northwest native, calling British Columbia, Washington, and Oregon home. As a perennial forb, it’s the kind of plant that comes back year after year without making a fuss about it. Think of it as the reliable friend in your garden who always shows up when needed.

This native beauty produces gorgeous tubular flowers in shades of purple-blue that practically scream hummingbird buffet! The blooms typically appear from late spring through early summer, creating a spectacular show that’ll have your neighbors asking what that lovely plant is.

Why Your Garden Needs This Plant

Here’s where Richardson’s penstemon really shines:

  • Pollinator magnet: Hummingbirds absolutely adore those tubular flowers, and native bees and butterflies aren’t far behind
  • Low maintenance: Once established, this tough cookie can handle drought like a champ
  • Native credentials: Supporting local ecosystems while creating beautiful landscapes? That’s a win-win
  • Versatile placement: Works beautifully in rock gardens, native plant gardens, and naturalized areas

Perfect Growing Conditions

Richardson’s penstemon isn’t picky, but it does have preferences. This plant thrives in USDA hardiness zones 4-8, making it suitable for most temperate climates. Here’s what it loves:

  • Sunlight: Full sun to partial shade (though it’ll reward you with more blooms in full sun)
  • Soil: Well-draining soil is absolutely essential – this plant despises soggy feet
  • Water: Drought tolerant once established, but appreciates occasional watering during dry spells

Planting and Care Tips

The beauty of Richardson’s penstemon lies in its simplicity. Here’s how to keep it happy:

  • Planting: Spring or fall planting works best, giving roots time to establish
  • Watering: Water regularly the first year, then back off – overwatering is more dangerous than underwatering
  • Mulching: A light winter mulch helps in colder zones (think zones 4-5)
  • Deadheading: Remove spent flowers to encourage more blooms, though some gardeners leave them for seed collection

Garden Design Ideas

Richardson’s penstemon plays well with others and fits beautifully into several garden styles:

  • Native plant gardens: Pair with other Pacific Northwest natives for an authentic local ecosystem
  • Rock gardens: Its drought tolerance makes it perfect for rocky, well-draining spots
  • Wildlife gardens: Plant in clusters to create maximum impact for pollinators
  • Xeric landscapes: Ideal for water-wise gardening approaches

The Bottom Line

Richardson’s penstemon is one of those plants that gives far more than it takes. It’s native, beautiful, supports local wildlife, and won’t throw tantrums if you forget to water it occasionally. For Pacific Northwest gardeners especially, this plant is like finding a twenty-dollar bill in your old jacket pocket – a delightful surprise that keeps on giving.

Whether you’re a seasoned native plant enthusiast or just starting to explore drought-tolerant options, Richardson’s penstemon deserves a spot in your garden. Your local hummingbirds will thank you, your water bill will thank you, and you’ll thank yourself every time you see those gorgeous purple-blue blooms dancing in the breeze.

Richardson’s 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 richardsonii Douglas ex Lindl. - cutleaf beardtongue

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