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Public Plant Profile

Sunburst St. John's Wort

Hypericum frondosum 'Sunburst'

Category: Deciduous Shrub • St. John's Wort

Sunburst St. John's Wort features bright yellow flowers and is perfect for borders and pollinator gardens.

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Mature Height: 2-3 feet

Mature Width: 2-3 feet

Bloom Color: Yellow

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

Sunburst St. John's Wort is a compact, deciduous shrub known for its bright yellow flowers and attractive foliage. It blooms profusely in summer, adding vibrant color to gardens.

Ideal Conditions

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

Soil Preferences

Well-drained soil is ideal; adaptable to various pH levels and moisture conditions.

Sun Needs

Sun

Watering Needs

Requires moderate watering, allowing soil to dry between sessions.

Pruning Notes

Light pruning in early spring encourages bushier growth and more blooms.

Fertilizing Notes

Fertilize sparingly; too much can lead to excessive foliage at the expense of flowers.

Common Issues

May face issues with root rot in overly wet conditions and occasional pest infestations.

Landscape Guidance

Landscape Use

bordermass plantingpollinator garden

Special Features

Bright yellow flowersattractive foliage

Wildlife Value

Attracts pollinators and provides habitat.

Resistance / Tolerance

Drought tolerant.

Notes from Our Designer

Great for adding color to garden borders. Attracts pollinators and is low maintenance.

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Design Ideas Using This Plant

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Helpful Next Steps

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Frequently Asked Questions

Is Sunburst St. John's Wort 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

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