Red Campion (Silene Dioica ‘Clifford Moor’)

Plant: Table of Contents

Red Campion (Silene dioica ‘Clifford Moor’) – A Comprehensive Guide

Red campion (Silene dioica ‘Clifford Moor’) is a captivating perennial plant that is valued for its vibrant red flowers and versatility in various landscape settings. In this extensive guide, we will delve deep into the cultivation, uses, maintenance, and propagation of this stunning plant. Whether you are a seasoned gardener or a novice enthusiast, this guide will provide valuable insights into maximizing the potential of red campion in your garden.

What is Red Campion (Silene dioica ‘Clifford Moor’)?

Red campion, scientifically known as Silene dioica ‘Clifford Moor’, is a prominent perennial species that is native to Europe, particularly the British Isles. It is a member of the Caryophyllaceae family and is renowned for its striking red flowers, which appear in abundance during its blooming season. The ‘Clifford Moor’ variety is especially esteemed for its intense crimson blooms that add a distinctive allure to any garden or natural setting.

Key Takeaways – Red Campion (Silene dioica ‘Clifford Moor’)

Before diving into the specific aspects of red campion cultivation and maintenance, let’s outline the key takeaways that we will explore in detail throughout this guide:

  1. Silene dioica ‘Clifford Moor’ is a captivating perennial plant with vibrant red flowers.
  2. It has a versatile range of uses, from ornamental landscaping to ecological conservation.
  3. Its requirements for water, sunlight, soil, and maintenance are essential for its optimal growth and development.
  4. Red campion can be propagated through various methods such as seed sowing and division.
  5. Despite its robust nature, it is susceptible to certain diseases and pests that require proactive management.

Now, let’s delve into the intricate details of red campion cultivation and management to harness the full potential of this remarkable plant.



Red campion (Silene dioica ‘Clifford Moor’) boasts a diverse array of applications, making it an invaluable addition to any garden or landscape. Its primary uses include:

  • Ornamental Value: The resplendent crimson flowers of the ‘Clifford Moor’ variety make it a prized addition to flower beds, borders, and rock gardens. Its visual appeal and vibrant hues contribute to the aesthetic charm of any landscape setting.
  • Ecological Importance: Red campion serves as a nectar source for pollinators such as bees, butterflies, and hummingbirds, making it a vital component of wildlife-friendly gardens and meadows. Its capacity to attract and sustain diverse pollinators enhances biodiversity and strengthens ecosystem resilience.
  • Naturalizing Landscapes: Due to its perennial nature and adaptability, red campion can naturalize in woodland areas, wildflower meadows, and other naturalistic settings, creating a harmonious and organic ambience.
  • Medicinal Benefits: In traditional herbal medicine, certain parts of the red campion plant are used for their purported medicinal properties. While scientific validation is needed, its historical medicinal uses contribute to its cultural and historical significance.


Proper water management is crucial for the health and vitality of red campion. This resilient plant demonstrates a moderate tolerance to drought conditions, but regular watering is essential, particularly during its establishment phase and prolonged dry spells. Here are key considerations for watering red campion:

  • Establishment Phase: Newly planted red campion specimens should be watered consistently to promote root establishment and vigorous growth. Adequate moisture levels during this critical period enhance the plant’s resilience and long-term performance.
  • Drought Conditions: During periods of limited rainfall or high temperatures, supplemental watering may be necessary to prevent moisture stress and ensure sustained flowering.


Red campion thrives in partial to full sunlight, benefiting from at least 4-6 hours of direct sunlight per day. However, it can also tolerate partial shade, especially in regions with intense afternoon sun or during exceptionally hot summers. Balanced sunlight exposure is essential for optimizing its blooming potential and overall vigor.


While red campion (Silene dioica ‘Clifford Moor’) is generally resilient and adaptable to various soil conditions, periodic fertilization can enhance its growth and blooming capacity. When considering fertilization for red campion, it is essential to prioritize balanced, slow-release fertilizers that provide essential nutrients without inducing excessive vegetative growth.

  • Timing: Apply a balanced fertilizer in early spring before the onset of active growth to support the plant’s nutritional requirements during its blooming phase.
  • Application Method: Gently incorporate the fertilizer into the soil around the red campion plants, ensuring even distribution and minimal disturbance to the root system.
  • Avoid Excesses: While fertilization is beneficial, excessive nutrient supplementation can lead to excessive foliage at the expense of flowering. Therefore, it is crucial to adhere to recommended application rates and consider the inherent fertility of the soil.


Red campion exhibits adaptability to a wide range of soil types, but it thrives in well-drained, moderately fertile soils with a slightly acidic to neutral pH (6.0-7.0). Consider the following soil-related guidelines for the successful cultivation of red campion:

  • Drainage: Adequate soil drainage is essential to prevent waterlogging and root rot, particularly during periods of heavy rainfall or irrigation. Incorporating organic amendments such as compost or well-rotted manure can enhance soil structure and drainage properties.
  • Soil pH: Red campion displays optimal growth in soils with a pH range of 6.0 to 7.0. Soil testing and pH adjustments can ensure an ideal growing environment for this perennial plant.


Pruning plays a pivotal role in maintaining the vigor, aesthetics, and longevity of red campion plants. While this species generally has a robust growth habit, periodic pruning and deadheading can optimize its blooming potential and overall appearance. Key pruning considerations for red campion include:

  • Deadheading: Regular removal of spent flowers promotes continuous blooming and prevents the formation of seeds, redirecting the plant’s energy towards new flower production.
  • Thinning: Thinning out overcrowded or weak stems enhances air circulation and light penetration, reducing the risk of fungal diseases and promoting overall plant health.
  • Renewal Pruning: Performing selective pruning to rejuvenate aging or overgrown specimens can invigorate the plant and sustain its long-term vitality.
  • Timing: Engage in regular pruning activities during the growing season, focusing on the removal of spent blooms and any damaged or diseased foliage.


Propagating red campion allows for the expansion of its presence in a garden or the establishment of new populations in naturalistic settings. The following methods are commonly employed for the successful propagation of red campion:

  • Seed Sowing: Red campion seeds can be sown directly in the garden during the early spring or late fall, taking advantage of natural stratification processes. Alternatively, indoor sowing in seed trays followed by transplanting can also yield successful results.
  • Division: Established red campion clumps can be divided every few years to rejuvenate the plants and create new specimens. This is typically performed in the early spring when new growth emerges, allowing for the seamless division and transplantation of the plant segments.

Container Popularity

Red campion’s adaptability and ornamental value make it a popular choice for container gardening, allowing individuals with limited garden space to enjoy its captivating blooms and ecological benefits. When cultivating red campion in containers, the following considerations are essential for success:

  • Container Size: Opt for adequately sized containers that can accommodate the robust growth habit and extensive root system of red campion.
  • Soil Quality: Utilize well-draining, high-quality potting mix enriched with organic matter to ensure optimal growing conditions for red campion in containers.
  • Watering: Consistent moisture management is crucial for container-grown red campion, necessitating regular monitoring and irrigation to prevent dryness and waterlogged conditions.

Common Diseases

Red campion (Silene dioica ‘Clifford Moor’) is generally resilient to many common plant diseases; however, it can occasionally fall victim to specific ailments that require prompt identification and management. The following diseases are among the potential concerns for red campion:

  • Powdery Mildew: Characterized by the development of white, powdery fungal growth on the foliage, powdery mildew can impact the overall vigor and aesthetics of red campion. Adequate air circulation and vigilant monitoring can help prevent and address this fungal disease.
  • Rust: Rust diseases can manifest as yellow-orange lesions on the leaves and stems of red campion, leading to diminished photosynthetic capacity and overall plant health. Timely removal of affected plant parts and fungicidal treatments can mitigate rust infestations.
  • Leaf Spot: Leaf spot diseases can cause the formation of discolored, necrotic spots on the foliage, compromising the plant’s structural integrity and vitality. Effective disease management practices, including proper sanitation and targeted fungicidal applications, are crucial for combating leaf spot infections.

Disease Diagnosis

When observing potential symptoms of disease or distress in red campion, diligent monitoring and accurate diagnosis are paramount for effective intervention. Here are essential steps to diagnose and address potential diseases affecting red campion:

  1. Symptom Identification: Thoroughly inspect the foliage, stems, and flowers of red campion to identify any abnormal changes or symptoms, including discoloration, lesions, or unusual growth patterns.
  2. Consultation: Seek guidance from local horticultural experts, botanists, or plant pathologists to accurately diagnose the underlying cause of the observed symptoms and determine appropriate management strategies.
  3. Integrated Management: Implement a holistic approach to disease management, emphasizing cultural practices, sanitation, and, if necessary, targeted pesticide or fungicide applications to address specific diseases affecting red campion.

Common Pests

While red campion exhibits resilience to many pests, certain insect species can occasionally pose a threat to its health and ornamental value. Understanding and vigilantly monitoring for potential pests can aid in the early detection and management of infestations. Common pests that may affect red campion include:

  • Aphids: These small, sap-sucking insects can congregate on the new growth and flower buds of red campion, leading to distorted growth and diminished vigor. Natural predators and selective insecticidal treatments can help control aphid populations.
  • Spider Mites: Spider mite infestations can cause stippled, discolored foliage and webbing on the undersides of leaves, impacting the plant’s photosynthetic capacity. Regular monitoring and targeted miticides can alleviate spider mite pressures on red campion plants.

Botanist’s Tips

As a plant scientist with a keen interest in red campion (Silene dioica ‘Clifford Moor’) and its horticultural significance, I offer the following expert tips to maximize the success and visual impact of this captivating plant:

  1. Soil Preparation: Prior to planting red campion, enrich the soil with organic matter to promote optimal drainage and fertility, facilitating robust growth and prolific flowering.
  2. Mulching: Apply a layer of organic mulch around red campion plants to conserve soil moisture, suppress weed growth, and insulate the root zone, bolstering the plant’s resilience and vitality.
  3. Regular Pruning: Engage in consistent deadheading and selective pruning to maintain a tidy, attractive appearance and encourage continuous blooming throughout the growing season.
  4. Integrated Pest Management: Employ proactive pest monitoring and integrated pest management strategies to detect and address potential pest pressures, minimizing their impact on red campion health and aesthetics.
  5. Wildlife Habitat Value: Embrace red campion’s ecological role by incorporating it into wildlife-friendly gardens and naturalistic landscapes, contributing to pollinator habitat and biodiversity conservation efforts.

Fun Facts

  • Red campion’s vibrant flowers are dioecious, meaning the male and female reproductive parts are borne on separate plants.
  • In traditional folklore, red campion was associated with various symbolic meanings and uses, ranging from love charms to protective talismans.
  • The genus name “Silene” is derived from the mythological Greek figure Silenus, known for his association with plants and revelry, reflecting the historical and cultural significance of red campion.

Links to External Resources

For further exploration and in-depth understanding of red campion (Silene dioica ‘Clifford Moor’) and its multifaceted attributes, consider the following external resources:

  1. Royal Horticultural Society (RHS) – “Silene dioica ‘Clifford Moor'”: This comprehensive guide by RHS provides detailed insights into the cultivation, characteristics, and landscape uses of Silene dioica ‘Clifford Moor’.
  2. University of Wisconsin-Madison Extension – “Red Campion (Silene dioica)”: Explore this resource to delve into the ecological significance and habitat value of red campion in naturalistic landscapes and conservation initiatives.
  3. Missouri Botanical Garden – “Growing Plants for Pollinators: Silene Dioica ‘Clifford Moor'”: Gain valuable perspectives on using red campion to enhance pollinator habitat and attract beneficial wildlife species to garden settings.

In conclusion, red campion (Silene dioica ‘Clifford Moor’) stands as a testament to the ornamental, ecological, and cultural significance of perennial plants in diverse horticultural contexts. By leveraging the insights and recommendations outlined in this comprehensive guide, you can embark on a rewarding journey of cultivating, appreciating, and conserving the captivating allure of red campion in your garden or natural landscapes.

1. Royal Horticultural Society (RHS) – “Silene dioica ‘Clifford Moor'”.
2. University of Wisconsin-Madison Extension – “Red Campion (Silene dioica)”.
3. Missouri Botanical Garden – “Growing Plants for Pollinators: Silene Dioica ‘Clifford Moor'”.

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.