Bluebeard (Caryopteris X Clandonensis ‘Arthur Simmonds’)

Plant: Table of Contents

Bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’)

Bluebeard, scientifically known as Caryopteris x clandonensis ‘Arthur Simmonds’, is a delightful and versatile flowering shrub that is renowned for its striking blue flowers and aromatic foliage. This plant is a charming addition to any garden, providing visual appeal and attracting beneficial pollinators. In this comprehensive guide, we will explore everything you need to know about bluebeard, from its cultural requirements and propagation techniques to its potential uses, common diseases, and pest management. Whether you are a seasoned gardener or a beginner, this guide will equip you with the knowledge to successfully care for and appreciate this enchanting plant.

Table of Contents

  1. What is Bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’)?
  2. Key Takeaways
  3. Culture
  4. Uses
  5. Water
  6. Sunlight
  7. Fertilizer
  8. Soil
  9. Pruning
  10. Propagation
  11. Container Popularity
  12. Common Diseases
  13. Disease Diagnosis
  14. Common Pests
  15. Botanist’s Tips
  16. Fun Facts
  17. Links to External Resources

What is Bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’)?

Bluebeard, Caryopteris x clandonensis ‘Arthur Simmonds’, is a deciduous shrub that belongs to the Verbenaceae family. It is a hybrid species resulting from the crossbreeding of Caryopteris incana and Caryopteris mongholica. This stunning plant originated in Eastern Asia and has made its way into gardens around the world due to its beautiful appearance and versatile characteristics.

The common name “bluebeard” is derived from the deep blue to violet-colored flowers that adorn the plant, resembling the color of a classic blue beard. Additionally, the plant’s leaves exude a pleasant fragrance when crushed, adding to its allure and making it a delightful choice for aromatic gardens.

Bluebeard can reach a mature height and spread of approximately 2 to 4 feet, making it a relatively compact shrub that fits well in various landscaping and gardening settings. With its impressive ornamental features and relatively low maintenance requirements, it has become a favorite among gardeners seeking a visually appealing and resilient plant for their outdoor spaces.

Key Takeaways – Bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’)

Before delving into the specific aspects of bluebeard care and cultivation, let’s summarize the key takeaways about this captivating plant:

  • Bluebeard is a deciduous shrub known for its stunning blue to violet-colored flowers and aromatic foliage.
  • It is scientifically classified as Caryopteris x clandonensis ‘Arthur Simmonds’ and belongs to the Verbenaceae family.
  • This plant is compact in size, typically reaching a height and spread of 2 to 4 feet, making it suitable for various garden settings.
  • Bluebeard is relatively low maintenance and can thrive in diverse soil and climatic conditions, although it thrives in well-drained soil and ample sunlight.
  • The plant attracts pollinators, making it a valuable addition to pollinator-friendly gardens and landscapes.

With these key points in mind, let’s explore the specific cultural requirements of bluebeard to ensure its optimal growth and overall well-being in a garden or landscape setting.


Cultivating bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’) is relatively straightforward, making it an excellent choice for both experienced and novice gardeners. To promote its healthy growth and prolific flowering, it is essential to understand and address its specific cultural requirements, including water, sunlight, fertilizer, soil, and pruning.


Bluebeard generally prefers moderate moisture levels, particularly during its initial growth stages and periods of intense heat. However, it is crucial to avoid overwatering, as excessive moisture can lead to root rot and other detrimental conditions. Adequately draining soil is essential to prevent waterlogging, which can compromise the plant’s health.

During its establishment phase, frequent watering is beneficial to encourage robust root development and overall vitality. Once the plant is well-established, it typically exhibits a degree of drought tolerance, requiring less frequent watering. However, it is essential to monitor the soil moisture levels and provide supplementary watering during prolonged dry spells, particularly in hotter climates.

Ensure that the soil is sufficiently moist, but not waterlogged, and allow the top layer of soil to dry out between watering sessions to prevent water-related issues. To determine the need for watering, consider the surrounding environmental conditions and the moisture retention capabilities of the soil, adjusting the watering frequency accordingly.


Bluebeard thrives in full sunlight and benefits from receiving at least 6 to 8 hours of direct sunlight daily. Adequate sunlight exposure is instrumental in promoting vigorous growth, abundant flowering, and sturdy overall structure. When planted in a location with insufficient sunlight, the plant may exhibit reduced flower production, leggy growth, and an overall diminished aesthetic appeal.

In regions with particularly intense or prolonged periods of sunlight and heat, providing partial shade during the hottest portions of the day can mitigate potential stress on the plant. However, ensure that the plant still receives a significant amount of direct sunlight to support its photosynthetic processes and overall vitality.


Proper fertilization is crucial for maintaining the health and vigor of bluebeard plants. A balanced, slow-release fertilizer with a formulation like 10-10-10 or 12-12-12 can provide the essential nutrients needed for robust growth and prolific flowering. Apply the fertilizer in early spring, just before the onset of new growth, to support the plant’s seasonal development.

To prevent over-fertilization, carefully follow the manufacturer’s recommendations regarding application rates and methods. Over-fertilization can lead to excessive vegetative growth at the expense of flowering, making it essential to strike a harmonious balance in providing the necessary nutrients without promoting excessive foliage at the expense of blooms.


Bluebeard is adaptable to a range of soil types, but it thrives in well-drained, loamy soil with good fertility levels. The soil should offer ample aeration and water permeability, preventing waterlogging and promoting healthy root development. While the plant can tolerate various soil pH levels, it generally prefers neutral to slightly acidic conditions, typically ranging from pH 6.0 to 7.0.

Before planting bluebeard, consider the existing soil conditions and make any necessary amendments to optimize the soil texture and fertility. Incorporating organic matter, such as compost or well-rotted manure, can enhance the soil’s structure and nutrient content, creating an optimal environment for the plant’s root system. Additionally, mulching around the base of the plant can help conserve soil moisture and suppress weed growth, further supporting the plant’s well-being.


Pruning bluebeard is an important aspect of its maintenance, contributing to its overall shape, aesthetics, and flowering performance. Proper pruning encourages the development of a compact, bushy form and stimulates the production of new flowering wood, leading to more abundant and vibrant blooms.

The ideal time for pruning bluebeard is during the late winter or early spring, just before the onset of new growth. This timing allows for the removal of any dead, damaged, or overgrown branches while facilitating the plant’s rejuvenation for the upcoming growing season. Utilize sharp, sterilized pruning tools to make clean cuts and minimize the risk of introducing infections.

When pruning bluebeard, focus on removing the oldest, woodiest stems to promote the emergence of new vegetative growth and flowering shoots. Aim to maintain a balanced and open structure, ensuring that the plant’s interior receives adequate air circulation and light exposure. Additionally, remove any spent flower clusters to encourage continuous blooming and prevent the plant from expending energy on seed production.


Propagating bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’) allows for the expansion of its presence in a garden while offering an opportunity to share this captivating plant with fellow gardening enthusiasts. The two primary methods of propagation for bluebeard are through softwood cuttings and seed propagation, each presenting unique advantages and considerations.

Softwood Cuttings

Softwood cuttings are taken from the current season’s growth, typically in late spring to early summer when the plant’s stems are at their most pliable and actively growing. Follow these steps to propagate bluebeard from softwood cuttings:

  1. Select a healthy, vigorous stem with no signs of disease or damage.
  2. Use sharp, sanitized pruning shears to take a 4 to 6-inch cutting, ensuring that it includes a few sets of leaves near the tip.
  3. Remove the lower leaves from the cutting, leaving just one or two sets of leaves at the top.
  4. Dip the severed end of the cutting in a rooting hormone to stimulate root development.
  5. Insert the cutting into a container filled with a well-draining propagation medium, such as a mix of perlite and peat moss.
  6. Provide the cutting with consistent moisture and a warm, bright environment while it establishes roots over the subsequent few weeks.

Monitor the cutting regularly for signs of new growth, indicating the successful development of roots. Once the cutting demonstrates strong root growth, it can be carefully transplanted into a larger container or directly into the garden soil, thereby establishing a new bluebeard plant.

Seed Propagation

Bluebeard seeds can also be used for propagation, although this method requires more time and patience due to the extended period needed for seed germination and subsequent growth. To propagate bluebeard from seeds, follow these general steps:

  1. Collect ripe seeds from existing bluebeard plants in the autumn when the seed heads have fully matured and dried.
  2. Store the collected seeds in a cool, dry location until the following spring, ensuring that they remain viable and intact.
  3. Sow the seeds in a container filled with a well-draining seed-starting mix, lightly covering them with a thin layer of the growing medium.
  4. Keep the seeds consistently moist and warm, providing the optimal conditions for germination and early seedling growth.
  5. Once the seedlings have developed sufficiently and demonstrate robust growth, they can be transplanted into individual containers or directly into the garden soil.

While seed propagation is a rewarding and cost-effective method of expanding a bluebeard population, it typically requires more time and attention compared to other propagation techniques. Regardless of the chosen propagation method, ensure that the newly propagated plants receive appropriate care and attention to establish themselves successfully and contribute to the garden’s aesthetic and ecological value.

Container Popularity

Bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’) is well-suited for container cultivation, offering a versatile and visually appealing option for patio gardens, balconies, and other confined outdoor spaces. When grown in containers, bluebeard showcases its captivating flowers and aromatic foliage while enabling gardeners to exercise greater control over its growing conditions and placement.

When selecting a container for bluebeard, prioritize options that provide ample room for the plant’s root system to expand and thrive. Choose a container with sufficient drainage holes to prevent waterlogging and facilitate proper aeration of the soil. Additionally, ensure that the selected container is made of durable, weather-resistant materials that can withstand outdoor conditions and provide support for the plant as it grows.

When potting bluebeard, utilize a high-quality potting mix that offers good drainage and aeration, fostering a conducive environment for the plant’s roots. Ensure that the soil remains consistently moist, yet well-drained, and provide the plant with adequate sunlight to support its overall health and flowering performance.

Container-grown bluebeard is well-suited for various urban and suburban settings, providing an opportunity to enjoy its ornamental features and aromatic qualities in areas with limited garden space. With proper care and maintenance, containerized bluebeard plants can thrive and contribute to the visual and olfactory appeal of outdoor living spaces.


The delightful bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’) possesses several noteworthy uses, making it a multifaceted addition to gardens, landscapes, and even herbal medicine practices. The plant’s ornamental and ecological value, as well as its potential contributions to herbal remedies, highlight its diverse range of uses and applications.

Ornamental Value

Bluebeard is primarily valued for its ornamental attributes, featuring captivating blue to violet-colored flowers and aromatic, lance-shaped leaves. The plant’s compact growth habit and relatively low maintenance requirements make it an attractive choice for borders, mass plantings, and mixed perennial beds. It also serves as an excellent option for pollinator gardens, attracting bees, butterflies, and other beneficial insects with its nectar-rich flowers.

Whether used as a standalone focal point or incorporated into mixed planting schemes, bluebeard adds visual interest and a pop of color to outdoor spaces, particularly during its flowering period. Its adaptability to various soil and climatic conditions further enhances its suitability for diverse garden designs and landscaping projects, contributing to its widespread popularity among gardeners and landscape enthusiasts.

Medicinal and Aromatic Qualities

In addition to its ornamental appeal, bluebeard possesses aromatic foliage that can be utilized for its pleasant fragrance. A quick brush against the leaves releases a fresh, herbal scent that adds an olfactory dimension to garden settings. Furthermore, the plant holds significance in herbal medicine traditions, with its leaves and flowers reportedly used in certain remedies and therapeutic practices.

While the medicinal applications of bluebeard may vary across traditional and contemporary herbal medicine systems, the plant’s aromatic qualities and potential medicinal properties underscore its holistic value beyond its purely ornamental attributes. As with any medicinal application, it is essential to consult reliable sources and practitioners to ensure safe and appropriate usage of herbal remedies.

Common Diseases

Despite its generally robust nature, bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’) is susceptible to certain diseases and health issues that can impact its growth and appearance. Being aware of the common diseases that may affect this plant is crucial for early detection and effective intervention to mitigate potential damage and safeguard its well-being. Some notable diseases that can afflict bluebeard include:

  1. Powdery Mildew: Powdery mildew is a fungal disease characterized by the development of a white, powdery coating on the plant’s leaves and stems. This disease can weaken the plant and impair its photosynthetic processes, ultimately compromising its growth and flowering performance.

  2. Root Rot: Excessive moisture or poorly draining soil can lead to the development of root rot, a condition that affects the plant’s root system, causing discoloration, decay, and diminished function. Symptoms of root rot include wilting, yellowing leaves, and stunted growth, often necessitating immediate remedial action to salvage the plant.

  3. Leaf Spot: Leaf spot diseases manifest as dark, irregularly-shaped lesions on the plant’s leaves, potentially compromising their structural integrity and photosynthetic capacity. These diseases are commonly caused by fungal pathogens and can spread rapidly under favorable environmental conditions.

  4. Canker Diseases: Canker diseases result in the development of sunken, damaged areas on the plant’s stems and branches, potentially leading to dieback and structural weakness. Canker diseases can compromise the plant’s overall vigor and aesthetic appeal, warranting prompt identification and intervention.

Disease Diagnosis

Identifying and diagnosing potential diseases affecting bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’) is essential for implementing targeted management strategies and preserving the plant’s health. By recognizing the symptoms and signs indicative of specific diseases, gardeners can take proactive measures to address the issues and prevent their escalation. When assessing the plant for potential diseases, consider the following key aspects:

  • Leaf and Stem Examination: Inspect the plant’s leaves and stems for any abnormalities, such as discoloration, lesions, mold-like growth, or structural damage. Note the location and extent of the symptoms and their progression over time.

  • Environmental Factors: Consider the prevailing environmental conditions, including temperature, humidity levels, and soil moisture, as these factors can influence the likelihood and severity of certain diseases. Assess whether any recent changes in environmental conditions may have predisposed the plant to disease development.

  • Cultural Practices: Evaluate the plant’s cultural management, such as watering frequency, fertilization regimen, and pruning methods, to determine whether any underlying cultural issues may have contributed to potential disease susceptibility.

  • Previous Disease History: Take into account any prior instances of disease or pest issues affecting the plant, as well as neighboring plants that may serve as potential sources of disease spread.

Upon observing potential disease symptoms in bluebeard, consider consulting with a horticultural expert or extension service for accurate disease diagnosis and tailored recommendations for disease management. Early detection and prompt intervention are key to mitigating the impact of diseases on the plant’s health and ensuring its enduring vitality.

Common Pests

In addition to diseases, certain pests and insect infestations can pose a threat to the health and vigor of bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’). Identifying and understanding common pests that may target the plant is crucial for implementing effective pest management strategies and preserving its overall well-being. Some prevalent pests that may affect bluebeard include:

  1. Aphids: These small, sap-sucking insects can cluster on the plant’s tender shoots and flowering clusters, leading to stunted growth, distorted foliage, and the secretion of honeydew that promotes the growth of sooty mold.

  2. Spider Mites: Spider mites are tiny arachnids that feed on the plant’s foliage, causing stippling, discoloration, and weakening of the leaves. Severe infestations can result in visible webbing and diminished plant vigor.

  3. Whiteflies: Whiteflies are small, winged insects that congregate on the undersides of the plant’s leaves, where they feed on sap and excrete honeydew. Their feeding activity can lead to wilting, yellowing leaves, and reduced photosynthetic capacity.

  4. Scale Insects: Scale insects are characterized by their immobile, protective shells that adhere to the plant’s stems and leaves. They feed on the plant’s sap and can cause diminished vigor, yellowing, and distorting of the foliage.

Botanist’s Tips

As a plant enthusiast and botanist, I have had the pleasure of engaging with bluebeard (Caryopteris x clandonensis ‘Arthur Simmonds’) and witnessing its delightful characteristics in various garden settings. To ensure the optimal care and enjoyment of this captivating plant, consider the following botanist’s tips for cultivating and appreciating bluebeard:

  1. Selecting Optimal Planting Locations: When incorporating bluebeard into garden designs, prioritize well-drained, sunny locations that provide ample space for the plant’s growth and overall development. Placing bluebeard where it can receive direct sunlight for the majority of the day will promote robust flowering and foliage production.

  2. Monitoring Watering Practices: Regularly monitor the soil moisture levels around bluebeard plants, adjusting the watering frequency based on environmental conditions and the plant’s specific moisture requirements. Strive to maintain consistent, yet well-drained, soil moisture to support the plant’s health and vitality.

  3. Promoting Pollinator Activity: Embrace bluebeard as a valuable inclusion in pollinator-friendly landscapes, where its nectar-rich flowers can attract and sustain beneficial pollinators such as bees, butterflies, and hummingbirds. Creating a pollinator-friendly environment enhances the ecological value of bluebeard and contributes to the health of surrounding plant communities.

  4. Caring for Overwintering Bluebeard:

Picture of Peter Taylors

Peter Taylors

Expert botanist who loves plants. His expertise spans taxonomy, plant ecology, and ethnobotany. An advocate for plant conservation, he mentors and educates future botanists, leaving a lasting impact on the field.