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Public Plant Profile

Purple Pillar® Althea

Hibiscus syriacus 'Gandini Santiago' (Purple Pillar®)

Category: Deciduous Shrub • Althea

Discover the Purple Pillar® Althea, a stunning columnar hibiscus perfect for accenting small spaces.

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Bloom Color: Purple

Bloom Time: Summer

Light: Sun

Zone: Zones 5-9

Maintenance: Low

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

Purple Pillar® Althea is a unique, upright shrub known for its striking purple flowers and columnar growth habit. It adds vertical interest to gardens and is drought-tolerant once established.

Ideal Conditions

Prefers full sun and well-drained soil. Tolerates drought once established.

Soil Preferences

Well-drained soil with moderate moisture; adaptable to various pH levels.

Sun Needs

Sun

Watering Needs

Water regularly during dry spells, allowing the soil to dry slightly between waterings.

Pruning Notes

Prune in late winter or early spring to maintain shape and encourage new growth.

Fertilizing Notes

Apply a balanced fertilizer in early spring to promote healthy growth and flowering.

Common Issues

May face issues with aphids, powdery mildew, or root rot if overwatered.

Landscape Guidance

Landscape Use

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Special Features

Columnar growth habitattractive flowers

Wildlife Value

Attracts pollinators and provides habitat.

Resistance / Tolerance

Drought tolerant once established.

Notes from Our Designer

Great for narrow spaces and urban gardens. Provides vertical interest.

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Design Ideas Using This Plant

Use this page to get a feel for where Purple Pillar® Althea may fit in the landscape, then explore similar plants below for more ideas on form, texture, and overall planting style.

What Clients Say

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“Josh of Bold Outdoors was a very professional, hard working landscape service provider. He worked with me very well blending his ideas with that I had already done in my landscape. He worked with me instead of telling…”

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“Bold Outdoors has provided the highest quality professional landscape design, installation and after installation services at my residence since April, 2014. Josh Graber, the owner of the company, listened to input from…”

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Helpful Next Steps

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Frequently Asked Questions

Is Purple Pillar® Althea 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. Bold Outdoors evaluates those practical conditions before recommending a plant broadly.

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 and installation plan for the property.

Next Step

Ready to plan your landscape?

Browse more plants or reach out and we will help you choose the right combination for your space.

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