Siberian Bugloss (Brunnera Macrophylla ‘King’s Ransom’)

Plant: Table of Contents

Siberian Bugloss (Brunnera macrophylla ‘King’s Ransom’): A Complete Guide

Siberian Bugloss (Brunnera macrophylla ‘King’s Ransom’) is a charming and versatile perennial plant that is prized for its delicate, heart-shaped leaves and its stunning blue flowers, which resemble those of forget-me-nots. This low-maintenance plant is a great addition to any garden, providing interest and beauty throughout the growing season. In this comprehensive guide, we will explore everything you need to know about the cultivation, care, and utilization of Siberian Bugloss, particularly the ‘King’s Ransom’ variety.

What is Siberian Bugloss (Brunnera macrophylla ‘King’s Ransom’)?

Siberian Bugloss, scientifically known as Brunnera macrophylla, is a member of the Boraginaceae family. It is native to the woodlands of Eastern Europe and Western Asia, growing in the wild as an understory plant. ‘King’s Ransom’ is a specific cultivar of Siberian Bugloss that is highly sought after for its unique foliage and flowers.

Key Takeaways – Siberian Bugloss (Brunnera macrophylla ‘King’s Ransom’)

Before we delve deeper into the specifics of cultivation and care, let’s highlight the key takeaways of growing Siberian Bugloss, especially the ‘King’s Ransom’ variety:

  • Cultivation Tips: Understanding the best practices for cultivating Siberian Bugloss, including the ‘King’s Ransom’ cultivar, is essential to successfully grow this plant in your garden.
  • Characteristics: Exploring the unique characteristics of Brunnera macrophylla ‘King’s Ransom’ that set it apart from other varieties of Siberian Bugloss.
  • Growing Conditions: Identifying the best growing conditions, such as light, water, soil, and fertilizer requirements, for ‘King’s Ransom’ Siberian Bugloss.
  • Care: Learning about the specific care routines required to ensure the optimal health and vigor of Siberian Bugloss, particularly the ‘King’s Ransom’ variety.
  • Plant Profile: Gaining a comprehensive understanding of the overall plant profile, including size, foliage, flowers, and seasonal interest, of Brunnera macrophylla ‘King’s Ransom’.
  • Varieties: Exploring the different varieties and cultivars of Siberian Bugloss that offer diverse colors, patterns, and features.
  • Propagation Techniques: Discovering the effective methods for propagating Brunnera macrophylla ‘King’s Ransom’ to expand your plant collection.
  • Common Pests and Diseases: Identifying potential issues, such as pests and diseases, that may affect the health of ‘King’s Ransom’ Siberian Bugloss and implementing appropriate management strategies.
  • Companion Plants: Exploring suitable companion plants that complement the beauty of Brunnera macrophylla ‘King’s Ransom’.
  • Landscaping and Container Gardening: Understanding the versatility of ‘King’s Ransom’ Siberian Bugloss in landscaping and its adaptability to container gardening.
  • Fun Facts: Uncovering interesting and lesser-known facts about Siberian Bugloss that add an element of fascination to this plant.

Now, let’s dive into the details of each of these key aspects to gain a comprehensive understanding of Siberian Bugloss, particularly the ‘King’s Ransom’ variety.



Siberian Bugloss, including the ‘King’s Ransom’ variety, is primarily grown for its ornamental value. The plant’s attractive foliage and delicate blue flowers make it a popular choice for adding interest and color to various garden settings. It is often used in shady or woodland gardens, where its low-growing habit and tolerance for shade make it a valuable addition. Additionally, its adaptability to container gardening enhances its versatility in both indoor and outdoor spaces.


Proper watering is crucial for the successful cultivation of Siberian Bugloss, as it prefers consistently moist soil. However, it is essential to avoid waterlogging, as excessive moisture can lead to root rot. When establishing newly planted ‘King’s Ransom’ Siberian Bugloss, regular watering is necessary to promote root development and establishment. Once established, the plant’s watering needs can be moderated based on the existing moisture levels in the soil. During periods of prolonged drought, supplemental watering may be required to prevent the plant from wilting and experiencing stress.


Siberian Bugloss, including the ‘King’s Ransom’ cultivar, is well-adapted to shady or partially shaded locations. In its natural woodland habitat, it thrives under the dappled light provided by the overhead canopy. When grown in a garden setting, it is vital to provide the plant with adequate shade to prevent leaf scorch and ensure optimal growth. However, some morning sunlight or filtered light can be beneficial, as long as the plant is shielded from intense afternoon sun. In hot climates, where the sun’s rays are intense, providing Siberian Bugloss with protection from direct sunlight is crucial for maintaining its health and vigor.


Applying a balanced, slow-release fertilizer in early spring can provide the necessary nutrients for the healthy growth of Siberian Bugloss. It is advisable to use a fertilizer specifically formulated for flowering perennials or woodland plants, as it will contain the essential elements required for promoting robust foliage and flower production. Care should be taken to follow the manufacturer’s instructions regarding the application rate and frequency to prevent over-fertilization, which can be detrimental to the plant’s overall well-being. Additionally, incorporating organic matter into the soil during planting or as a topdressing in subsequent years can contribute to the long-term fertility of the growing medium.


Siberian Bugloss, particularly the ‘King’s Ransom’ variety, thrives in moist, well-draining soils with a slightly acidic to neutral pH. It is adaptable to various soil types, including loamy, sandy, or clay soils, as long as they offer good drainage to prevent waterlogged conditions. The incorporation of organic matter, such as compost or well-rotted manure, can improve soil structure and moisture retention, creating an ideal growing environment for Siberian Bugloss. When planting ‘King’s Ransom’ Siberian Bugloss, amending the soil with organic materials can promote healthy root development and establish a favorable foundation for the plant’s growth.


Pruning Siberian Bugloss, including the ‘King’s Ransom’ variety, is relatively minimal, primarily focusing on the removal of spent flowers and damaged or yellowing foliage. Deadheading the plant by snipping off the faded flower stalks can help redirect its energy towards producing new growth and potentially initiating a second wave of blooms. Moreover, removing any discolored or tattered leaves can enhance the plant’s appearance and prevent the spread of diseases. Pruning activities are typically carried out in spring or early summer, allowing the plant to maintain its attractive appearance throughout the growing season.



Siberian Bugloss, such as the ‘King’s Ransom’ cultivar, can be propagated through division or by collecting and planting its seeds. The most common and reliable method is division, which involves separating the plant’s crown into smaller sections, each containing viable roots and shoots. This process is typically carried out in early spring or fall, providing the divided segments with the opportunity to establish themselves before the onset of harsh weather conditions. Additionally, collecting the plant’s seeds for sowing can yield new seedlings, allowing for the expansion of the Siberian Bugloss population in a garden or landscape setting.


The ideal timing for propagating ‘King’s Ransom’ Siberian Bugloss through division is in early spring, as the plant emerges from dormancy and begins displaying signs of new growth. Fall can also be suitable for propagation, giving the divided segments sufficient time to establish a strong root system before the arrival of winter. When collecting and sowing seeds, it is advisable to do so immediately after the seeds mature and are ready for harvest. This ensures that the seeds maintain their viability and have the best chance of germinating when placed in a suitable growing medium.


Propagating Siberian Bugloss, especially the ‘King’s Ransom’ variety, in containers can be an effective method for managing the growth and development of the new plants. Utilizing small pots or seedling trays filled with a well-draining potting mix enables gardeners to nurture the young divisions or seedlings under controlled conditions. This approach can be particularly beneficial for providing individual attention to each propagated plant, monitoring their progress, and transitioning them to larger containers or garden beds once they have established a strong root system and sufficient foliage.


The popularity of Siberian Bugloss, including the ‘King’s Ransom’ cultivar, has been steadily increasing among gardeners and landscapers due to its attractive foliage, delicate flowers, and adaptability to various growing conditions. ‘King’s Ransom’ stands out for its distinct leaf variegation, adding an extra layer of visual interest to this already enchanting plant. As a result, it has garnered attention and admiration from plant enthusiasts seeking unique and versatile perennials for their gardens. Its growing popularity is evident in its frequent inclusion in landscape designs, container plantings, and shaded garden beds, where its beauty and resilience can shine.

Common Diseases

Disease Diagnosis

Siberian Bugloss, including the ‘King’s Ransom’ variety, is relatively resistant to most diseases when provided with proper growing conditions and care. However, it may occasionally face the risk of foliar diseases, such as powdery mildew or leaf spot. These issues can typically be identified by the presence of unusual markings, discoloration, or fungal growth on the plant’s leaves. Upon noticing these symptoms, it is crucial to take prompt action to prevent the spread of the disease and protect the overall health of the plant.

Common Pests

Pest Identification

Siberian Bugloss, including the ‘King’s Ransom’ cultivar, is generally not prone to severe pest infestations. However, it may encounter occasional challenges from certain pests, including slugs and snails. These mollusks are attracted to the plant’s lush foliage and can cause damage by feeding on its leaves, resulting in unsightly holes and blemishes. Early detection and proactive pest management measures can help mitigate the impact of these pests and safeguard the visual appeal and vitality of ‘King’s Ransom’ Siberian Bugloss.

Botanist’s Tips

1. Light and Shade: Understanding the balance between light and shade is crucial for the successful cultivation of Siberian Bugloss, particularly the ‘King’s Ransom’ variety. Providing partial shade and protection from intense sunlight can create an optimal environment for the plant to thrive.

2. Soil Moisture: Maintaining consistent soil moisture, without allowing waterlogging, is essential for the healthy growth of ‘King’s Ransom’ Siberian Bugloss. Amending the soil with organic matter can help improve its moisture retention capacity and promote better growing conditions for the plant.

3. Pruning Practices: Engaging in regular pruning activities, such as deadheading spent flowers and removing damaged foliage, can promote the overall health and appearance of Siberian Bugloss. It is advisable to undertake these tasks during the appropriate seasons to maximize their impact.

4. Pests and Diseases: Vigilant monitoring for potential pest infestations and disease symptoms can aid in early intervention and effective management. By promptly addressing these issues, the overall health and vigor of ‘King’s Ransom’ Siberian Bugloss can be safeguarded.

5. Propagation Timing: Choosing the right timing for propagating Siberian Bugloss, whether through division or seed sowing, can significantly influence the success of the process. Assessing the plant’s growth stages and environmental conditions is essential for determining the optimal propagation period.

Fun Facts

  • Siberian Bugloss is also known by the common name “False Forget-Me-Not,” reflecting its resemblance to the similar-looking forget-me-not flowers.

  • The ‘King’s Ransom’ cultivar of Brunnera macrophylla stands out for its striking gold and green variegated leaves, adding a touch of elegance to shaded gardens.

  • Siberian Bugloss is an excellent choice for attracting pollinators, such as bees and butterflies, to the garden, contributing to the overall biodiversity and ecological balance.

  • The use of Siberian Bugloss, especially the ‘King’s Ransom’ variety, in mixed borders and woodland gardens can create captivating visual contrasts and enhance the overall aesthetic appeal of the landscape.

  • In addition to its ornamental value, Siberian Bugloss has been historically used for its medicinal properties, with some traditional remedies incorporating parts of the plant for various health benefits.

Links to External Resources

For additional information and resources on Siberian Bugloss (Brunnera macrophylla ‘King’s Ransom’) and related topics, you may find the following links helpful:

  1. Royal Horticultural Society – Brunnera

  2. University of Wisconsin-Madison – Brunnera macrophylla

  3. North Carolina State University – False Forget-Me-Not

  4. American Society for the Prevention of Cruelty to Animals – Siberian Bugloss

  5. Missouri Botanical Garden – Brunnera macrophylla

  6. RHS Gardening Advice – Siberian Bugloss Care

  7. Gardening Know How – Siberian Bugloss: How To Grow Siberian Bugloss Plants

  8. Gardenia – Brunnera macrophylla ‘King’s Ransom’

  9. Garden Guides – Siberian Bugloss Plant Profile

In conclusion, Siberian Bugloss (Brunnera macrophylla ‘King’s Ransom’) is a captivating and resilient plant that offers a wealth of ornamental and environmental benefits. By understanding its unique characteristics, care requirements, and cultivation practices, gardeners and plant enthusiasts can integrate this charming perennial into their outdoor spaces with confidence, creating visually stunning displays and fostering biodiversity.

For those seeking a low-maintenance yet visually appealing addition to shaded gardens, ‘King’s Ransom’ Siberian Bugloss shines as a beacon of elegance and versatility. With the right knowledge and approach, its golden variegated leaves and enchanting blue flowers can become a highlight of any garden landscape, contributing to the timeless allure of this graceful woodland gem.

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.