North America Non-native Plant

Hartweg’s Beardtongue

Botanical name: Penstemon hartwegii

USDA symbol: PEHA18

Native status: Not native but doesn't reproduce and persist in the wild

Hartweg’s Beardtongue: A Native Beauty That Hummingbirds Can’t Resist If you’re looking for a native plant that practically rolls out the red carpet for hummingbirds while asking for almost nothing in return, let me introduce you to Hartweg’s beardtongue (Penstemon hartwegii). This delightful native perennial is like that friend who ...

Hartweg’s Beardtongue: A Native Beauty That Hummingbirds Can’t Resist

If you’re looking for a native plant that practically rolls out the red carpet for hummingbirds while asking for almost nothing in return, let me introduce you to Hartweg’s beardtongue (Penstemon hartwegii). This delightful native perennial is like that friend who always brings the best snacks to the party – except in this case, the snacks are gorgeous tubular flowers that pollinators absolutely adore.

What Makes Hartweg’s Beardtongue Special?

Hartweg’s beardtongue is a native North American wildflower that knows how to make an entrance. With its striking purple to violet tubular flowers that bloom from spring through summer, this plant creates a spectacular show that’s both eye-catching for humans and irresistible to wildlife. The flowers are perfectly shaped for hummingbird beaks, making your garden a popular pit stop on their daily rounds.

Where Does It Call Home?

This beautiful native plant hails from western North America, with its primary range in California and parts of the southwestern United States. As a true native, it’s perfectly adapted to the local climate and soil conditions, which means less work for you and more benefits for local ecosystems.

Why Your Garden Needs This Plant

There are plenty of reasons to fall in love with Hartweg’s beardtongue:

  • Pollinator magnet: Hummingbirds, bees, and butterflies can’t resist those tubular flowers
  • Low maintenance: Once established, it’s quite drought tolerant
  • Long blooming period: Enjoy flowers from spring through summer
  • Native plant benefits: Supports local ecosystems and requires fewer resources
  • Versatile design element: Perfect for native gardens, xeriscapes, rock gardens, and wildlife habitats

Perfect Garden Homes

Hartweg’s beardtongue isn’t picky about where it lives, but it really shines in certain settings. It’s a natural choice for native plant gardens, where it can mingle with other regional favorites. Rock gardens and xeriscape designs also provide ideal homes, as this plant appreciates good drainage and doesn’t mind if you forget to water it occasionally. If you’re creating a dedicated pollinator or wildlife garden, consider this plant essential – it’s like installing a hummingbird highway right in your backyard.

Growing Conditions That Make It Happy

The beauty of native plants like Hartweg’s beardtongue is that they’re already adapted to thrive in their natural environment. This particular species prefers:

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soil is essential – soggy roots are not this plant’s friend
  • Water: Drought tolerant once established, though some supplemental water during extreme dry spells is appreciated
  • Climate: Thrives in USDA hardiness zones 8-10

Planting and Care Tips

Getting Hartweg’s beardtongue established in your garden is refreshingly straightforward. The best planting times are fall or spring, when temperatures are moderate and rainfall is more likely. Here’s how to set your plant up for success:

  • Choose a spot with good drainage – this is non-negotiable
  • Dig a hole about as deep as the root ball and twice as wide
  • Plant at the same depth it was growing in the container
  • Water thoroughly after planting, then gradually reduce frequency as the plant establishes
  • Deadhead spent flowers to encourage continued blooming
  • Avoid over-fertilizing – native plants typically don’t need the extra nutrients

A Garden Investment That Pays Dividends

When you plant Hartweg’s beardtongue, you’re not just adding another pretty face to your garden – you’re creating habitat, supporting native wildlife, and reducing your garden’s environmental footprint. Plus, there’s something deeply satisfying about watching a hummingbird hover delicately over flowers you’ve nurtured, knowing you’ve played a small part in supporting these amazing creatures.

Whether you’re a seasoned native plant enthusiast or just beginning to explore the world of regional flora, Hartweg’s beardtongue offers the perfect combination of beauty, ecological value, and easy care. It’s proof that the best garden plants are often the ones that have been perfecting their act in your local landscape for thousands of years.

How

Hartweg’s Beardtongue

Grows

Growing season

Spring and Summer

Lifespan

Short

Growth form & shape

Multiple Stem and Erect

Growth rate

Rapid

Height at 20 years
Maximum height

4.0

Foliage color

Green

Summer foliage density

Moderate

Winter foliage density

Porous

Foliage retention

No

Flowering

Yes

Flower color

Red

Fruit/seeds

Yes

Fruit/seed color

Brown

Allelopath

No

Nitrogen fixing

None

Toxic

None

C:N Ratio

Medium

Fire Resistant

No

Foliage Texture

Medium

Low-growing Grass

No

Resproutability

No

Coppice Ability

No

Bloat

None

Hartweg’s Beardtongue

Growing Conditions

Adapted to Coarse Soil

Yes

Adapted to Medium Soil

Yes

Adapted to Fine Soil

Yes

Anaerobic tolerance

None

CaCO₃ tolerance

Low

Cold Stratification

Yes

Drought tolerance

None

Nutrient requirement

Low

Fire tolerance

Low

Frost-free days minimum

120

Hedge tolerance

Medium

Moisture requirement

Medium

pH range

6.8 to 8.0

Plants per acre

1700 to 2700

Precipitation range (in)

10 to 40

Min root depth (in)

6

Salt tolerance

None

Shade tolerance

Intermediate

Min temperature (F)

-38

Cultivating

Hartweg’s Beardtongue

Flowering season

Late Spring

Commercial availability

Routinely Available

Fruit/seed abundance

High

Fruit/seed season

Spring to Fall

Fruit/seed persistence

No

Propagated by bare root

No

Propagated by bulb

No

Propagated by container

Yes

Propagated by corm

No

Propagated by cuttings

No

Propagated by seed

Yes

Propagated by sod

No

Propagated by sprigs

No

Propagated by tubers

No

Seed per pound

800000

Seed spread rate

Rapid

Seedling vigor

High

Small grain

No

Vegetative spread rate

None

Hartweg’s 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 hartwegii Benth. - Hartweg's beardtongue

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