Species

Penstemon barbatusScarlet Beardtongue

4 other cultivars

perennialN. America Native

Rich Ruby Beardtongue

Penstemon barbatus 'Rich Ruby'

The Story

Plant Bio

Rich Ruby is known for its striking red tubular flowers and robust growth habit.

This cultivar has one of the richest colors among Penstemon barbatus cultivars.

Uses & Benefits:

Penstemon barbatus Rich Ruby offers striking red flowers that attract pollinators, enhancing visual appeal.

Its drought tolerance makes it a sustainable choice for water-wise gardens.

Provides nectar for hummingbirds and bees, supporting local biodiversity.

SpeciesPenstemon barbatusScarlet Beardtongue

Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

5, 6, 7, 8

Water

Low to moderate

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic

Bloom period

Early summer – Late summer

In flower about 3 months of the year

Planting

How to Grow

Tuck seeds into well-draining soil in early spring for best germination.
Mist cuttings regularly to maintain humidity and encourage rooting.
Transplant seedlings when they are 4 inches tall into full sun locations.
Fertilize with a balanced liquid fertilizer every 4–6 weeks during active growth.
Divide mature plants in early spring to promote healthy growth.
Mulch around plants to conserve moisture and suppress weeds.

Pro Tip

Ensure well-drained soil and full sun exposure for vibrant blooms and healthy growth.

Keep It Thriving

Care Guide

Do

Water deeply but infrequently to prevent root rot 🌱
Prune after flowering to encourage bushier growth
Apply organic compost annually for nutrients
Monitor regularly for pests and diseases

Don't

Avoid overwatering which can cause fungal issues ❌
Don’t prune in late fall to protect winter interest
Refrain from planting in poorly drained soil
Don’t neglect mulching to retain soil moisture

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vivid flower bordersWildflower meadowsPollinator-friendly garden

Companion Plants

Salvia EchinaceaLavender Coreopsis Gaillardia

Multiply

Propagation Methods

Good to Know

Common Questions

Rich Ruby Beardtongue questions

What zones can Rich Ruby Beardtongue grow in?

Rich Ruby Beardtongue is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Rich Ruby Beardtongue deer resistant?

Not reliably. Deer may browse Rich Ruby Beardtongue, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Rich Ruby Beardtongue bloom?

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

Does Rich Ruby Beardtongue need full sun?

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

Is Rich Ruby Beardtongue drought tolerant?

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