Siberian Bugloss (Brunnera Macrophylla ‘Alexander’s Great’)

Plant: Table of Contents

Siberian Bugloss (Brunnera Macrophylla ‘Alexander’s Great’)

Introduction to Siberian Bugloss

Siberian bugloss, scientifically known as Brunnera macrophylla ‘Alexander’s Great’, is an exquisite perennial plant that has gained popularity among garden enthusiasts for its captivating foliage and delicate flowers. This species belongs to the family Boraginaceae and is native to the Caucasus region of Eurasia. Siberian bugloss is recognized for its heart-shaped leaves and small, sky-blue flowers that resemble those of forget-me-nots. Additionally, its adaptability to shaded areas and minimal maintenance requirements make it a valuable addition to gardens and landscapes.

In this comprehensive guide, we will delve into the various aspects of Siberian bugloss, including its culture, uses, care requirements, propagation, and common diseases and pests. By the end of this article, you will have gained valuable insights into the optimal methods for cultivating and maintaining Siberian bugloss in your garden or outdoor space.

Key Takeaways

Siberian Bugloss Characteristics

  • Hardy perennial plant with heart-shaped leaves and delicate, sky-blue flowers
  • Well-suited for shaded areas and woodland gardens
  • Low maintenance and relatively pest and disease resistant

Alexander’s Great Bugloss

  • Exceptional variety of Siberian bugloss valued for its large foliage and robust growth habit
  • Attractive foliage with silver veining that adds interest to garden landscapes
  • Provides excellent ground cover and complements other shade-loving plants

Brunnera Macrophylla Varieties

  • “Jack Frost”: Notable for its striking silver foliage with green veins
  • “Sea Heart”: Renowned for its large, robust leaves and vibrant blue flowers
  • “Hadspen Cream”: Distinctive for its creamy-white variegated foliage



Siberian bugloss is a versatile plant that serves several purposes in garden landscapes. Some common applications include:
– Groundcover: Its dense foliage and spreading habit make it an ideal groundcover for shaded areas.
– Borders: Siberian bugloss can be used to delineate garden borders or edging along pathways.
– Rock Gardens: Its low-growing nature and attractive foliage make it suitable for rock gardens and slopes.


The watering requirements for Siberian bugloss are relatively moderate. It thrives in consistently moist soil, especially during the growing season. However, it is essential to ensure proper drainage to prevent waterlogging, which can lead to root rot and other moisture-related issues.


Siberian bugloss flourishes in partial to full shade, making it an excellent choice for gardens with limited sunlight. It is particularly well-suited for woodland or dappled shade environments where other plants may struggle to thrive.


A balanced fertilizer applied in spring can support the growth and vigor of Siberian bugloss. Opt for a slow-release fertilizer to provide a steady nutrient supply throughout the growing season. It is crucial to follow the recommended dosage and avoid over-fertilization, as excessive nutrients can result in leaf burn or reduced flowering.


The ideal soil for Siberian bugloss is rich, well-draining, and slightly acidic. Amending the soil with organic matter such as compost or peat moss can enhance its fertility and drainage properties. This species is adaptable to various soil types, including loamy, sandy, and clay soils.


Pruning requirements for Siberian bugloss are minimal. Deadheading the spent flowers can promote continuous blooming and prevent self-seeding, especially if naturalizing is not desired. Additionally, removing any damaged or discolored foliage can enhance the plant’s overall appearance.


Siberian bugloss can be propagated through several methods, including:
– Division: Divide mature clumps in early spring to create new plants.
– Seed Propagation: Collect seeds from mature plants and sow them in a well-prepared seed bed or containers.

Container Popularity

Siberian bugloss is well-suited for container gardening, particularly when grown in shaded or semi-shaded areas. Selecting a spacious container with adequate drainage and using a high-quality potting mix can ensure the plant’s success in a containerized environment.

Common Diseases

Disease Diagnosis

Siberian bugloss is generally resistant to diseases when provided with suitable growing conditions. However, it may occasionally be affected by fungal diseases such as powdery mildew and leaf spot. Proper air circulation, adequate spacing, and avoiding overhead irrigation can mitigate the risk of these pathogens.

Common Pests

Siberian bugloss is relatively resilient to pest infestations. However, it may encounter occasional issues with slugs and snails, particularly in moist and shaded areas. Implementing preventive measures such as using barriers, organic slug pellets, or diatomaceous earth can deter these pests from damaging the foliage.

Botanist’s Tips

Fun Facts

  • Siberian bugloss is also referred to as “False Forget-Me-Not” due to its resemblance to true forget-me-not flowers.
  • The species name “macrophylla” is derived from the Greek words “makros” (large) and “phyllon” (leaf), signifying its large leaf structure.

Links to External Resources

To further explore the world of Siberian bugloss and expand your knowledge, consider exploring the following reliable resources:
Royal Horticultural Society (RHS)
Missouri Botanical Garden


Siberian bugloss (Brunnera macrophylla ‘Alexander’s Great’) is a captivating perennial plant with a myriad of beneficial attributes for garden enthusiasts. Its adaptability to shade, minimal maintenance requirements, and aesthetic appeal make it an invaluable addition to gardens, landscapes, and container displays. By adhering to the optimal cultural practices, such as providing suitable soil, moisture, and sunlight conditions, you can ensure the thriving growth of Siberian bugloss in your outdoor spaces. With its charming foliage and delicate flowers, Siberian bugloss exemplifies the grace and resilience of shade-loving plants, contributing to the diversity of botanical wonders in horticulture.

Incorporating Siberian bugloss into your gardening endeavors can transform shaded areas into enchanting sanctuaries, complemented by the beauty of this remarkable perennial species.

This article provides an in-depth exploration of Siberian bugloss, including its cultural requirements, propagation methods, and the management of common diseases and pests. Whether you are a novice or experienced gardener, this comprehensive guide aims to equip you with the knowledge and insights necessary to cultivate and appreciate the allure of Siberian bugloss in your outdoor spaces. From its captivating foliage to its adaptive nature, Siberian bugloss embodies the allure of shade-loving plants and presents a wealth of opportunities for enhancing garden landscapes.

Siberian Bugloss (Brunnera Macrophylla ‘Alexander’s Great’) Resources:

I hope you found this article enlightening and valuable in your pursuit of horticultural excellence. As you embark on your gardening journey, may the enchanting allure of Siberian bugloss enrich and elevate your outdoor spaces with its enduring beauty and graceful presence. Happy gardening!

Please let us know if you have any questions or need further assistance regarding Siberian bugloss or any other gardening-related inquiries. Our team of experts is here to support and guide you towards creating thriving and captivating garden landscapes.

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.