Bluebeard (Caryopteris X Clandonensis ‘Longwood Blue’)

Plant: Table of Contents

The Amazing bluebeard (Caryopteris x clandonensis ‘Longwood Blue’)

Plants are an essential part of our lives, providing beauty, oxygen, and numerous other benefits. One such captivating plant is the bluebeard (Caryopteris x clandonensis ‘Longwood Blue’). Its stunning blue flowers and low maintenance requirements make it a favorite among gardeners and landscapers. In this comprehensive guide, we will delve into all aspects of the bluebeard plant, from its culture and uses to care and maintenance tips. Whether you’re a seasoned gardener or just starting, this article will equip you with the knowledge to cultivate and appreciate the extraordinary bluebeard plant.

What is bluebeard (Caryopteris x clandonensis ‘Longwood Blue’)?

The bluebeard (Caryopteris x clandonensis ‘Longwood Blue’) is a deciduous shrub known for its striking blue flowers and aromatic foliage. It belongs to the family Lamiaceae and is native to East Asia. The plant’s compact size, reaching a height of 2-4 feet with a similar spread, makes it an ideal choice for borders, perennial gardens, and mixed plantings.

Key Takeaways

  • Scientific Name: Caryopteris x clandonensis ‘Longwood Blue’
  • Common Names: Bluebeard plant, Caryopteris Longwood Blue shrub
  • Plant Type: Deciduous shrub
  • Flower Color: Blue
  • Foliage: Aromatic, silvery-green
  • Uses: Borders, perennial gardens, mixed plantings
  • Hardiness Zone: 5-9

Now, let’s explore the various aspects of this charming plant, including its culture, uses, and essential care requirements.


Cultivating the bluebeard (Caryopteris x clandonensis ‘Longwood Blue’) involves understanding its specific needs for water, sunlight, soil, and more.


Bluebeard plants require well-draining soil and regular watering, especially during dry spells. However, it’s essential to avoid waterlogging, as this can lead to root rot. Once established, the plant exhibits moderate drought tolerance, making it suitable for regions with sporadic rainfall.


Adequate sunlight is crucial for the bluebeard plant to thrive and produce an abundance of vibrant flowers. Planting it in a location that receives full sun (at least 6-8 hours of direct sunlight per day) will promote healthy growth and bloom development.


When it comes to fertilizing bluebeard (Caryopteris x clandonensis ‘Longwood Blue’), a balanced, slow-release fertilizer can be applied in early spring as new growth emerges. Additionally, a layer of organic mulch around the base of the plant can help retain moisture and supply nutrients as it breaks down.


The bluebeard plant prefers well-drained, moderately fertile soil with a slightly acidic to neutral pH. Amending the soil with organic matter such as compost can improve its overall structure and fertility, contributing to the plant’s health and vigor.


Pruning is an essential aspect of bluebeard plant care, aiding in maintaining its shape, promoting new growth, and enhancing flowering. In late winter or early spring, prune the plant back to around 6-12 inches above the ground to encourage vigorous, branching growth and prolific flowering during the growing season.


Propagating bluebeard (Caryopteris x clandonensis ‘Longwood Blue’) can be achieved through softwood cuttings taken in late spring or early summer. Utilizing a rooting hormone and providing the appropriate environmental conditions can aid in successful rooting and the establishment of new plants.

Container Popularity

The compact size and ornamental appeal of the bluebeard plant make it well-suited for container cultivation. Its low maintenance requirements and striking blue flowers render it an excellent choice for adding vibrant color and texture to outdoor living spaces, patios, and balconies.

Common Diseases

While generally resilient, the bluebeard plant may be susceptible to certain diseases, including powdery mildew and root rot. Proper cultural practices, such as providing good air circulation, avoiding overwatering, and maintaining overall plant health, can help prevent disease occurrence.

Disease Diagnosis

Diagnosing diseases in the bluebeard plant involves closely observing the foliage and overall appearance for any signs of discoloration, wilting, or abnormal growth. Additionally, seeking professional advice and submitting samples to diagnostic laboratories can aid in identifying and managing plant diseases effectively.

Common Pests

Though relatively resistant to pests, bluebeard (Caryopteris x clandonensis ‘Longwood Blue’) may occasionally encounter pests such as aphids, spider mites, and scale insects. Regular monitoring and employing natural predators or appropriate insecticidal treatments can help mitigate pest infestations.

Botanist’s Tips

To ensure the optimal performance and health of the bluebeard plant, consider the following tips:

  • Plant in a sunny location with well-drained soil.
  • Water consistently, especially during the establishment phase.
  • Apply a balanced fertilizer in early spring to support growth and flowering.
  • Prune in late winter or early spring to rejuvenate the plant and maintain its shape.
  • Monitor for pests and diseases, taking prompt action if detected.

Fun Facts

  • The blue flowers of the Caryopteris x clandonensis ‘Longwood Blue’ plant are a rare and striking sight in the garden landscape, attracting pollinators such as bees and butterflies.
  • The foliage of the bluebeard plant emits a pleasant, aromatic scent when brushed or crushed, adding sensory appeal to its ornamental value.

The bluebeard (Caryopteris x clandonensis ‘Longwood Blue’) is undoubtedly a captivating and versatile plant that offers both aesthetic and ecological benefits. As we continue to appreciate and cultivate this remarkable species, the information provided here serves as a valuable resource for its successful integration into gardens and landscapes.

Links to External Resources

For further information and resources on the bluebeard (Caryopteris x clandonensis ‘Longwood Blue’), explore the following links:

In conclusion, the bluebeard plant stands as a delightful addition to gardens, providing vibrant blooms, aromatic foliage, and minimal maintenance requirements. With the insights shared here, gardeners and plant enthusiasts are empowered to cultivate and appreciate the charm and resilience of the bluebeard (Caryopteris x clandonensis ‘Longwood Blue’) in diverse horticultural settings.

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.