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Euphorbia characias subsp. wulfenii: The Stunning Mediterranean Spurge

Mediterranean Spurge, Euphorbia wulfenii

Euphorbia characias subsp. wulfenii Flowering
Position
  • Full sun to light shade
  • Sheltered from cold winter winds
  • South or west-facing position ideal
Hardiness
  • Hardy down to -10°C (14°F)
  • Can survive most UK winters in well-drained soil
Soil Type
  • Well-drained soil essential
  • Tolerates poor soils
  • Thrives in neutral to alkaline pH
  • Good for chalky soils
  • Dislikes wet winter conditions
    Soil PH
    • Thrives in neutral to alkaline pH
    Height
    • Height: 120-150cm (4-5ft)
    • Spread: 120-150cm (4-5ft)
    Seasons of Interest
    • Flowers: Large lime-green bracts from March to June
    • Foliage: Blue-grey evergreen leaves
    • Year-round architectural interest
    • Seed heads provide extended interest into summer
      Additional Notes
      • Wear gloves when handling – all parts toxic
      • Milky sap can cause skin irritation
      • Self-seeds readily if not deadheaded
      • Cut flowering stems to ground after blooming
      • Drought tolerant once established
      • Good for gravel gardens and coastal areas
      • Can be short-lived (3-5 years) but self-seeds freely
      • Makes excellent cut flowers
      • Best planted in spring
      • Benefits from gravel mulch around crown
      • May need stakes in exposed positions
      • Excellent for Mediterranean-style gardens

        Euphorbia characias subsp. wulfenii

        This article explores Euphorbia characias subsp. wulfenii, a striking Mediterranean spurge perfect for adding architectural interest to your garden. We’ll cover its cultivation, care, and unique characteristics, making it an invaluable resource for gardeners of all levels.

        What is Euphorbia characias subsp. wulfenii?

        Euphorbia characias subsp. wulfenii is a herbaceous perennial shrub, also known as the Mediterranean spurge. It’s an evergreen sub-shrub, forming a naturally rounded shape. This plant originates from the Mediterranean region and thrives in dry, rocky conditions. Garden designer Gertrude Jekyll described this sun-loving plant as one of the grandest, showcasing its enduring appeal. The Royal Horticultural Society (RHS) also recognizes its horticultural merit. This Euphorbia characias subsp. wulfenii boasts grey-green leaves and is topped with huge heads of chartreuse-green flowers with bronze bracts in early summer. Its flowering period extends from March to May.

        Is Euphorbia characias subsp. wulfenii a shrub or perennial?

        Euphorbia characias subsp. wulfenii is classified as a herbaceous perennial. It behaves more like a shrub, maintaining its structure year-round, but technically its stems are biennial; the stem dies back after producing a flower, which should be cut right back to its base to encourage new growth. It’s an evergreen, retaining its foliage throughout the year.

        How do I care for Euphorbia characias subsp. wulfenii?

        This spurge is remarkably low-maintenance. It thrives in full sun and well-drained soil, exhibiting excellent drought tolerance. It’s equally at home in a contemporary minimalist or gravel garden. Prepare well-drained soil for optimal growth. Remember that the milky sap is poisonous and a potential skin irritant, so always wear gloves when working with this plant. The milky sap is poisonous and harmful if eaten.

        What are the best conditions for growing Euphorbia characias subsp. wulfenii?

        This plant flourishes in full sun and well-drained soil. Its drought tolerance makes it ideal for drier climates. The soil should be well-drained to prevent root rot. It is tolerant of various conditions, making it a versatile addition to many garden designs.

        How big does Euphorbia characias subsp. wulfenii grow?

        Euphorbia characias subsp. wulfenii typically reaches a height and spread of 120-150 cm. Its size makes it a substantial addition to the garden, providing a striking focal point. The plant forms a naturally rounded shape, requiring minimal pruning.

        How do I propagate Euphorbia characias subsp. wulfenii?

        Propagation is achievable through seeds or cuttings. The plant may self-seed, resulting in seedlings that appear near the mother plant.

        What are the uses of Euphorbia characias subsp. wulfenii in the garden?

        Euphorbia characias subsp. wulfenii is versatile and adds textural interest to the garden, working well in Mediterranean gardens, traditional herbaceous borders, and contemporary designs. Its handsome appearance, with tall evergreen stems and chartreuse flowers in spring, makes it suitable for a variety of settings.

        What are the potential problems with Euphorbia characias subsp. wulfenii?

        The milky sap is poisonous, acting as a skin irritant. Always wear gloves when handling this plant. If you experience skin irritation, find help. It is important to note that the plant is harmful if eaten.

        Euphorbia characias subsp. wulfenii in December

        What’s the history of Euphorbia characias subsp. wulfenii?

        Linnaeus assigned the name Euphorbia to the entire genus after Euphorbus the Greek physician who served King Juba of Numidia in 12BC. He married the daughter of Anthony and Cleopatra. Euphorbus wrote that one of the cactus-like euphorbias was a powerful laxative. Carl Linnaeus, the botanist and taxonomist, assigned the name to this entire genus. This subspecies, wulfenii, reflects its specific characteristics.

         

        How do I prune Euphorbia characias subsp. wulfenii?

        After flowering, cut back the flower stems right back to their base to encourage fresh shoots and maintain a neat shape. This encourages new growth emerging from the base of the plant.

        Key Points to Remember:

         

        • Euphorbia characias subsp. wulfenii is a low-maintenance, drought-tolerant plant
        • It prefers full sun and well-drained soil
        • Always wear gloves when handling it, as the milky sap is a skin irritant and poisonous
        • Cut back flower stems after flowering to encourage new growth
        • It’s a striking addition to any garden

        Check out the RHS article here.

        For more information on perennials for your garden please click here.

        Frequently Asked Questions

         

        Q: What is Euphorbia characias subsp. wulfenii?

        A: Euphorbia characias subsp. wulfenii, often called Mediterranean Spurge, is a handsome, tall evergreen plant prized for its vibrant lime-yellow flowers and distinctive glaucous leaves. It’s a real eye-catcher in any garden!

        Q: Where does Euphorbia characias originate?

        A: This stunning spurge originates from the Mediterranean region and is typically found on dry, rocky slopes, making it perfect for drought-tolerant gardens.

        Q: Where can I buy Euphorbia characias subsp. wulfenii?

        A: Euphorbia characias subsp. wulfenii is available at most garden centres and through various online suppliers, and the seeds are available on Amazon.

        Q: How should I care for my Euphorbia characias?

        A: Caring for this herbaceous perennial is straightforward! Ensure it receives ample sunlight, and remember it’s drought-tolerant, so avoid overwatering. Always wear gloves as the milky sap can irritate your skin!

        Q: When does Euphorbia characias bloom?

        A: Euphorbia characias typically blooms in midsummer. During this time, it produces rounded heads of greenish-yellow flowers that brighten up your garden.

        Q: How do I prune Euphorbia characias?

        A: To maintain its appearance, cut the stem where new growth appears after the flowers fade. This helps preserve its natural rounded shape.

        Q: Is Euphorbia characias suitable for all garden types?

        A: Absolutely! This semi-evergreen plant is versatile and thrives in various garden styles, including those designed by the renowned Edwardian garden designer Gertrude Jekyll. It’s particularly well-suited to low-maintenance and drought-resistant gardens.

        Q: What precautions should I take when working with Euphorbia species?

        A: Always wear gloves when handling euphorbias, as the milky sap can cause skin irritation. Safety first!

        Q: Can Euphorbia characias be used in landscaping?

        A: Yes, it’s one of the most magnificent plants for landscaping! Its height and striking flowers make it a superb focal point in any garden design.

        Q: Does Euphorbia characias require specific soil conditions?

        A: No! This spurge is adaptable and grows well in poor, well-drained soils, hence its presence on rocky slopes. Simply avoid excessively wet conditions, and it will flourish!

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