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Dark Towers Penstemon

Penstemon 'Dark Towers'

Category: Perennial • Penstemon

Discover Dark Towers Penstemon, a stunning plant with dark foliage and tubular flowers, perfect for borders and pollinator gardens.

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Mature Height: 2-3 feet
Mature Width: 18-24 inches
Bloom Color: Purple, Magenta
Bloom Time: Summer
Light: Sun
Zone: Zones 4-8
Maintenance: Moderate
Growth Rate: Moderate
Season of Interest: Summer
Foliage: Deciduous

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Bold Outdoors Verified Insight

Designed & Reviewed by

Josh Graber

Owner and Landscape Designer · Kansas State University · 25+ Years Experience

B.S. in Horticulture and Landscape Design – Kansas State University

25+ years of industry experience

Description

Dark Towers Penstemon features striking dark foliage and tall spikes of tubular flowers, making it a stunning addition to any garden. This perennial thrives in sunny spots and attracts pollinators, adding beauty and life to your landscape.

Ideal Conditions

Thrives in full sun to partial shade with well-drained soil. Prefers moderate moisture levels.

Soil Preferences

Requires well-drained soil with good moisture retention. Tolerates a range of pH levels and is adaptable to various soil types.

Sun Needs

Sun

Landscape Guidance

Landscape Use

borderaccentpollinator garden

Special Features

Attractive dark foliagetubular flowersattracts pollinators

Wildlife Value

Attracts pollinators and provides habitat for birds.

Resistance / Tolerance

Drought tolerant

Notes from Our Designer

Great for adding vertical interest and color to garden beds. Works well in mixed borders or as a focal point.

Maintenance Notes

Moderate

Complementary Plants

Plants That Pair Well in the Landscape

Selected using botanical relationships, growing conditions, color harmony, size, texture, season, and landscape use.

What Clients Say

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“I have had great experiences with Bold Outdoors. Josh designed our home's landscaping and has been a valued partner for the past 7 years as we have added to and maintained our home's landscaping.”

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★★★★★

“Bold Outdoors has provided the highest quality professional landscape design, installation and after installation services at my residence.”

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Helpful Next Steps

Browse All PlantsSee Design ServicesRequest a Consultation

Frequently Asked Questions

Is Dark Towers Penstemon a good fit for Kansas City landscapes?

That depends on sun exposure, moisture, spacing, and how the plant will be used in the overall design.

How should homeowners use this plant information?

Use the plant profile as a planning tool for size, conditions, and visual role, then connect it to the broader landscape design plan.

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