perennialN. America Native

Smooth Beardtongue

Penstemon glaber

Not currently listed at our partner nurseries.

Expertly Curated

Real-Time Pricing

Loved by Designers

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

18 inches

Light

Full Sun

Zones

4, 5, 6, 7, 8

Water

Low to moderate

Humidity

Dry to moderate

Lifespan

Perennial

Native To

Western North America

Toxicity

Non-toxic to humans and pets

The Story

Plant Bio

Penstemon glaber, commonly known as the smooth penstemon, is a native perennial that is drought tolerant and attracts pollinators. This species is recognized for its smooth leaves and tubular flowers that are particularly attractive to hummingbirds.

Bloom Period:

EarlyLate

Uses & Benefits:

Penstemon glaber provides vibrant, tubular flowers that attract pollinators, enhancing garden aesthetics with minimal maintenance.

Its drought tolerance makes it ideal for water-wise gardens and xeriscaping.

Attracts hummingbirds and bees, supporting local ecosystems.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

Shipping costs Year-round shipping Free shipping

Planting

How to Grow

Tuck seeds into well-draining soil in early spring for best germination.
Mist cuttings regularly to maintain humidity and encourage root development.
Plant seedlings in full sun, spacing 12-18 inches apart for airflow.
Water deeply once a week during dry spells to promote healthy growth.
Mulch around plants to retain moisture and suppress weeds.
Divide mature clumps in early spring to propagate new plants.

Pro Tip

Ensure excellent drainage to prevent root rot and promote vibrant flowering.

Keep It Thriving

Care Guide

Do

Water regularly during dry periods 💧
Prune after flowering to encourage bushiness ✂️
Apply balanced fertilizer in early spring 🌱
Mulch to conserve moisture and regulate soil temperature

Don't

Overwater, which can cause root rot ❌
Allow soil to become waterlogged ❌
Ignore deadheading spent flowers ❌
Plant in dense shade, which hampers blooms ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Plant
Propagate
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Arid rock garden with silvery foliageColorful border with long-lasting bloomsWildflower meadow for ecological benefits

Companion Plants

Salvia Echinacea Coreopsis Lavender Yarrow

Multiply

Propagation Methods

Good to Know

Common Questions

Smooth Beardtongue questions

What zones can Smooth Beardtongue grow in?

Smooth Beardtongue is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Smooth Beardtongue deer resistant?

Yes — Smooth Beardtongue is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Smooth Beardtongue bloom?

Smooth Beardtongue typically blooms in early summer through mid-summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Smooth Beardtongue need full sun?

Smooth Beardtongue does best in full sun (6+ hours).

Is Smooth Beardtongue drought tolerant?

Yes — once established (usually after the first full season), Smooth Beardtongue handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.