perennialN. America Native

Calico Beardtongue

The Story

Plant Bio

Penstemon calycosus is an upright, clump-forming herbaceous perennial native to open woods, prairies, and limestone bluffs across eastern and midwestern North America. It features glossy green, lanceolate leaves with serrate margins and terminal panicles of tubular, snapdragon-like lavender to light purple flowers from late spring to mid-summer.

Distinguished by long, narrow sepals extending past the corolla, this species exhibits greater shade tolerance and clay adaptability than most western beardtongues. Basal foliage often persists through winter, while the nectar-rich flowers feature white throats with nectar guides that draw native bees and hummingbirds.

Uses & Benefits:

Produces terminal clusters of soft lavender tubular blooms above glossy foliage.

Tolerates clay, alkaline soils, and partial shade better than most beardtongues.

Provides nectar for native bees, sphinx moths, and hummingbirds.

Essentials

At a Glance

Plant Type

Perennial

Height

48"

Width

24"

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

High

Lifespan

Perennial

Native To

Eastern & Midwestern North America

Toxicity

Non-toxic

Bloom period

Late spring – Mid summer

In flower about 3 months of the year

Planting

How to Grow

Select a planting site in full sun or partial shade with moist, well-draining soil.
Dig a planting hole as deep as the root ball and twice as wide.
Set the plant into the hole so the crown sits level with the surrounding soil surface.
Water thoroughly after planting and maintain moderate soil moisture during the first growing season.

Pro Tip

Avoid heavy fertilizer applications; extra nutrients produce weak, leggy stems that flop over when the plant is in flower.

Keep It Thriving

Care Guide

Do

Plant in well-drained soil to avoid winter root rot.
Provide partial afternoon shade in warm regions to preserve foliage density.

Don't

Do not over-fertilize, which leads to stem lodging.
Do not allow soil to remain waterlogged or stagnant around the crown.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Rain gardensWoodland bordersNative plant gardensRock gardens

Companion Plants

Echinacea purpurea Monarda fistulosa Amsonia hubrichtii Schizachyrium scoparium

Multiply

Propagation Methods

Good to Know

Common Questions

Calico Beardtongue questions

What zones can Calico Beardtongue grow in?

Calico 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 Calico Beardtongue deer resistant?

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

When does Calico Beardtongue bloom?

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

Does Calico Beardtongue need full sun?

Calico Beardtongue does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Calico Beardtongue drought tolerant?

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