Myrtle Spurge (Euphorbia Myrsinites)

Plant: Table of Contents

Myrtle Spurge (Euphorbia myrsinites): A Fascinating and Versatile Plant

Euphorbia myrsinites, commonly known as myrtle spurge, is a captivating and versatile plant that can add charm and character to any garden or landscape. With its stunning blue-green foliage and unique flowering structure, the myrtle spurge has intrigued botanists and gardeners alike for generations.

In this comprehensive guide, we will explore the various aspects of myrtle spurge, from its cultural requirements to its uses, pests and diseases, and propagation. Whether you are a seasoned gardener or just starting out, this article will provide you with the knowledge and insights to cultivate and care for this remarkable plant successfully.

What is Myrtle Spurge (Euphorbia myrsinites)?

Euphorbia myrsinites, belonging to the family Euphorbiaceae, is a low-maintenance, drought-tolerant perennial plant native to southeastern Europe and the Caucasus. This striking succulent is renowned for its attractive blue-green, rubbery foliage and unique chartreuse flowers, making it a valuable addition to rock gardens, xeriscapes, and Mediterranean-style landscapes.

The common name “myrtle spurge” likely originated from the resemblance of its foliage to that of myrtle plants, despite not being taxonomically related. When the plant is broken or pruned, it exudes a milky sap that can cause skin irritation and is toxic if ingested, requiring caution when handling.

Euphorbia myrsinites Characteristics:
– Botanical Name: Euphorbia myrsinites
– Common Name: Myrtle Spurge
– Family: Euphorbiaceae
– Origin: Southeastern Europe, Caucasus
– Growth Habit: Succulent, Spreading
– Foliage: Blue-Green, Succulent
– Flowers: Chartreuse, Bract-Like Structure
– Toxicity: Skin Irritant, Toxic if Ingested

Now that we have introduced myrtle spurge, let’s delve into its key characteristics and how to care for and utilize this fascinating plant.

Key Takeaways – Myrtle Spurge (Euphorbia myrsinites)

Before we embark on the detailed exploration of myrtle spurge, let’s outline the key takeaways that we will be covering in this guide. These takeaways include essential care aspects, uses, common pests and diseases, and tips for successful cultivation.

Euphorbia myrsinites Care

  • Water: Drought-Tolerant, Well-Draining Soil
  • Sunlight: Full Sun to Partial Shade
  • Fertilizer: Minimal, Low-Nitrogen
  • Soil: Sandy, Well-Draining
  • Pruning: Minimal, Caution Required
  • Propagation: Division, Seed Sowing
  • Container: Suitable for Well-Draining Containers
  • Maintenance: Minimal, Requires Caution

Myrtle Spurge Plant Profile

  • Growth Habit: Low, Spreading
  • Flowering: Chartreuse, Unique Bract Structure
  • Foliage: Blue-Green, Succulent, Evergreen
  • Toxicity: Skin Irritant, Toxic if Ingested
  • Drought Tolerance: High
  • Hardiness Zones: 5-9

Myrtle Spurge Gardening Tips

  • Companion Plants: Drought-Tolerant Species
  • Landscape Design: Rock Gardens, Xeriscapes
  • Water Management: Established, Drought-Tolerant
  • Pest Control: Caution Required
  • Sunlight Requirements: Full Sun, Partial Shade

With these key takeaways in mind, let’s embark on a journey to understand how to cultivate and care for myrtle spurge effectively.


Cultivating myrtle spurge successfully involves understanding its cultural requirements, including water, sunlight, fertilizer, soil, and pruning. Let’s explore these aspects in detail to provide an optimal environment for the plant to thrive.


Myrtle spurge is a versatile plant that offers several uses in gardening and landscaping. Understanding the potential applications of this plant can help gardeners make informed decisions when incorporating it into their outdoor spaces.

Garden Design

  • Rock Gardens: Myrtle spurge’s low-growing, spreading habit and striking foliage make it a desirable component in rock gardens, adding textural interest and visual appeal.
  • Xeriscapes: Given its drought tolerance, myrtle spurge is well-suited for xeriscapes, where water-conserving landscaping is essential.
  • Mediterranean-Style Landscapes: The blue-green foliage of myrtle spurge complements the aesthetic of Mediterranean-style landscapes, adding a touch of exotic charm.

Container Gardening

  • Patio Containers: Myrtle spurge can thrive in well-draining containers, making it a suitable option for enhancing patios, balconies, and other outdoor living spaces.
  • Succulent Gardens: In combination with other succulent species, myrtle spurge can contribute to stunning container gardens, creating focal points and visual interest.


Understanding the water requirements of myrtle spurge is crucial for maintaining its health and ensuring optimal growth. Given its natural habitat in regions with limited water availability, myrtle spurge exhibits remarkable drought tolerance.

Water Requirements:
– Drought-Tolerant: Myrtle spurge is well-adapted to dry conditions and requires minimal watering once established.
– Well-Draining Soil: The key to successful water management for myrtle spurge is to provide well-draining soil to prevent waterlogging, especially in regions with higher rainfall.

Watering Guidelines:
– Established Plants: Once established, myrtle spurge generally requires minimal supplemental watering, relying primarily on natural rainfall.
– Watering Schedule: During prolonged periods of drought, limited watering may be necessary to support healthy growth, particularly for younger plants.


Proper sunlight exposure is essential for the growth and development of myrtle spurge. Understanding its sunlight requirements can help in optimal placement within the landscape or garden.

Sunlight Requirements:
– Full Sun to Partial Shade: Myrtle spurge thrives in full sun to partial shade, making it adaptable to a range of light conditions.
– Ideal Placement: In regions with intense heat, providing partial shade during the hottest part of the day can prevent foliage scorching and maintain plant vigor.

Sunlight Tips:
– Full Sun: In cooler climates, myrtle spurge can benefit from ample sunlight exposure to promote robust growth and flowering.
– Partial Shade: In hotter regions, providing afternoon shade can help prevent stress and conserve moisture, especially during peak summer months.


Fertilization is a consideration for many garden plants, but myrtle spurge generally requires minimal or no supplemental fertilization, particularly with regard to nitrogen levels.

Fertilizer Guidelines:
– Minimal Fertilization: Myrtle spurge typically thrives in nutrient-poor soil and does not require regular fertilization, especially with high-nitrogen products.
– Balanced Fertilizer: If the soil is notably deficient in essential nutrients, a balanced, low-nitrogen fertilizer applied sparingly can help support plant health.

Fertilizer Tips:
– Soil Testing: Before considering fertilization, conduct a soil test to assess the nutrient status and identify any potential deficiencies.


The soil composition and structure play a significant role in the health and vigor of myrtle spurge. Understanding the soil requirements and making suitable amendments can contribute to successful cultivation.

Soil Type:
– Sandy, Well-Draining Soil: Myrtle spurge thrives in sandy, well-draining soil that prevents waterlogging and promotes root health.
– pH Range: Tolerant of a wide pH range, myrtle spurge can adapt to slightly alkaline to slightly acidic soil conditions.

Soil Amendments:
– Organic Matter: Incorporating organic matter, such as well-rotted compost or aged manure, can improve soil structure and fertility, particularly for sandy soils.
– Mulching: Applying a layer of organic mulch around the base of myrtle spurge can aid in moisture retention and weed suppression, benefiting overall plant health.


Pruning myrtle spurge is a task that requires caution due to the toxic sap it exudes when cut or broken. Understanding the appropriate techniques and timing for pruning can help maintain the plant’s appearance and vigor.

Pruning Techniques:
– Caution Required: When pruning myrtle spurge, it is essential to wear protective gloves and clothing to minimize skin contact with the toxic sap.
– Deadheading: Removing spent flowers and seed heads can encourage continued flowering and prevent self-seeding in the garden.

Pruning Schedule:
– Late Winter to Early Spring: Conduct any necessary pruning during late winter to early spring before new growth emerges, taking care to minimize sap exposure.


Reproducing myrtle spurge through propagation methods such as division and seed sowing allows gardeners to expand their plantings and share this captivating species with others.

Propagation Methods:
– Division: Dividing established clumps of myrtle spurge can be an effective way to create new plants, particularly in early spring before active growth resumes.
– Seed Sowing: Collecting seeds from mature myrtle spurge plants and sowing them in a suitable growing medium can yield new seedlings for transplanting.

Propagation Tips:
– Potting Up: When propagating myrtle spurge, provide the young plants with ample space and well-draining soil to encourage healthy root development and establishment.

Container Popularity

The adaptability of myrtle spurge to container gardening makes it a popular choice for enhancing outdoor living spaces and introducing unique textures and colors on patios, decks, and balconies.

Container Considerations:
– Well-Draining Containers: Select pots and containers with adequate drainage to prevent waterlogging and support the plant’s drought-tolerant nature.
– Soil Medium: Utilize a well-draining, succulent-specific potting mix to provide the ideal growing medium for myrtle spurge in containers.

Container Tips:
– Outdoor Placement: Position containers of myrtle spurge in locations that receive the appropriate sunlight exposure, taking into account any necessary shading in intense heat.

Common Diseases

While myrtle spurge is generally resilient and disease-resistant, understanding common diseases that may affect the plant can help in proactive management and prevention.

Disease Resistance:
– Generally Robust: Myrtle spurge is known for its resilience and ability to thrive in diverse environmental conditions with minimal susceptibility to diseases.
– Root Rot: Excessive moisture and waterlogging can lead to root rot, a potential concern in poorly-draining soil or overwatered containers.

Disease Prevention:
– Well-Draining Soil: Ensuring proper soil drainage is vital in preventing moisture-related diseases and maintaining root health.
– Clean Pruning Tools: Using sanitized, sharp pruning tools for any necessary maintenance can minimize the risk of disease introduction.

Disease Diagnosis

Recognizing symptoms of diseases that may affect myrtle spurge is essential for timely intervention and effective management. Common signs of potential issues should be promptly addressed to maintain plant health.

Symptom Recognition:
– Leaf Discoloration: Yellowing or browning of leaves, especially in excess moisture, can indicate potential root rot or fungal issues.
– Stunted Growth: Slow or stunted growth may signal root health concerns, necessitating soil assessment and potential corrective measures.

Diagnostic Steps:
– Soil Inspection: Check soil moisture levels and drainage, particularly after periods of heavy rainfall or excessive irrigation.
– Visual Examination: Regularly inspect the foliage and overall appearance of myrtle spurge for any signs of stress or decline.

Common Pests

While myrtle spurge tends to be relatively pest-resistant, a few potential pests may occasionally impact the plant. Recognizing these pests and implementing suitable control measures can help preserve the plant’s vitality.

Potential Pests:
– Aphids: These small, sap-sucking insects may occasionally infest myrtle spurge, particularly in areas with higher humidity and sheltered conditions.
– Spider Mites: Spider mite infestations can lead to stippled, discolored foliage and the presence of fine webbing, especially in dry, hot conditions.

Pest Control:
– Horticultural Oils: Applying horticultural oils can effectively manage aphids and spider mites while minimizing the impact on beneficial insects.

Botanist’s Tips

As a botanist fascinated by myrtle spurge, I have compiled a set of tips to help gardeners and enthusiasts cultivate and appreciate this remarkable plant effectively.

Botanist’s Recommendations:
– Caution with Sap: Always use protective gear when handling and pruning myrtle spurge to minimize skin exposure to the toxic sap.
– Embrace its Resilience: Myrtle spurge’s ability to thrive in challenging environments makes it an excellent choice for sustainable, low-maintenance landscapes.

Cultivate Responsibly:
– Prevent Self-Seeding: Promptly deadhead spent flowers to prevent self-seeding in the garden and control potential invasiveness.
– Share Knowledge: Educate others about the unique characteristics and potential cautions associated with myrtle spurge to promote safe and responsible cultivation.

Fun Facts

To further our appreciation of myrtle spurge, here are some intriguing and delightful fun facts about this captivating plant.

Fascinating Tidbits:
1. Succulent Adaptation: Myrtle spurge’s fleshy, blue-green foliage is an adaptation to conserve water, making it well-suited for arid climates and landscapes.

  1. Unique Floral Structure: The flowers of myrtle spurge, surrounded by conspicuous bract-like structures, provide a distinctive and eye-catching display in the garden.

  2. Historical Uses: In traditional herbal medicine, myrtle spurge was utilized for various purposes, although its toxic properties require caution and expertise in handling.

Links to External Resources

To further explore the world of myrtle spurge and delve deeper into its cultivation and uses, I recommend consulting the following reputable external resources.

Plant Name: “Myrtle Spurge (Euphorbia myrsinites)”

By exploring these external resources, you can access additional insights, care guidelines, and botanical information to enhance your understanding and appreciation of myrtle spurge.

In conclusion, myrtle spurge (Euphorbia myrsinites) stands as a captivating and adaptable plant with unique characteristics that make it a valuable addition to various garden styles and landscapes. By embracing its resilience, understanding its cultural requirements, and appreciating its distinct beauty, gardeners can cultivate and enjoy the charm of myrtle spurge for years to come.

By integrating the information provided in this guide and leveraging the recommended external resources, you can embark on a fulfilling journey to develop and cherish this remarkable plant.

Remember to approach the handling of myrtle spurge with caution due to its toxic properties, and share your newfound knowledge with fellow enthusiasts to encourage responsible cultivation and appreciation for this fascinating botanical 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.