Euphorbia amygdaloides 'Miners Merlot'

Miner’s Merlot Spurge

Botanical Name: Euphorbia amygdaloides ‘Miners Merlot’
Family: Euphorbiaceae
Origin: Europe (cultivar selection)
Plant Type: Evergreen perennial subshrub

Overview

A dramatic foliage perennial for Adelaide’s Mediterranean climate, Euphorbia amygdaloides ‘Miners Merlot’ is prized for its deep burgundy to near-black leaves and striking lime-green flower bracts in late winter and spring. Compact and architectural, it brings year-round colour contrast to borders, underplanting and shaded garden spaces where flowers are often scarce. Best suited to well-drained soils and sheltered positions, it performs reliably in South Australia when protected from extreme summer heat and hot winds. While not fragrant, its glossy, dark foliage may take on richer purple-black tones in cooler weather, delivering strong visual impact across seasons.

Key Features

• Mature Size: 0.4–0.6 m H × 0.4–0.6 m W (compact, clumping form)
• Growth Rate: 20–30 cm per year under good conditions
• Foliage: Glossy, deep burgundy to near-black evergreen leaves; colour intensifies in cooler months and softens slightly in summer heat
• Flowers: Lime-green to chartreuse flower bracts held above foliage from late winter through spring
  
• Fragrance: Not fragrant
• Seasonal Interest: Bold evergreen foliage year-round with a strong late winter–spring flowering display; foliage colour deepens in cooler conditions
• Wildlife Value: Flowers attract beneficial insects, particularly early-season pollinators
• Tolerance: Moderate drought tolerance once established; heat tolerant in sheltered positions; wind sensitive; not suited to exposed coastal sites; light frost hardy
• Planting Density: Borders or mass planting: 4–6 plants per m²; feature clumps: 40–50 cm apart
• Pet Friendly: No — milky sap is toxic and can irritate skin; avoid contact and keep away from pets and children

Where It Works Best

• Sunlight: Full sun to light shade; best foliage colour in bright light with afternoon shade in hot inland areas
• Soil: Free-draining loam or sandy loam; tolerates mildly alkaline soils common in Adelaide; avoid heavy, wet clay
• Water Needs: Establishment: 1–2 deep soaks/week for 6–8 weeks. Established: occasional deep watering during extended dry periods; avoid overwatering
• Maintenance: Low; cut spent flowering stems back to the base after flowering (wear gloves); remove damaged foliage as needed; no heavy feeding required
• Lifespan: 8–15+ years in well-drained conditions
• Climate Zones: Best suited to temperate and Mediterranean SA gardens — Adelaide foothills, shaded suburban gardens, sheltered courtyards
• Soil pH: Neutral to slightly alkaline; tolerates mildly acidic soils with good drainage

Landscape & Design Ideas

• High-contrast foliage plant for shaded or part-shade borders
• Winter–spring interest plant beneath deciduous trees
• Contemporary gardens paired with silver, lime or green foliage plants
• Feature clumps in courtyards or protected alfresco zones
• Effective contrast with hellebores, heuchera, lomandra and ornamental grasses

Why You Will Love It

‘Miners Merlot’ delivers dramatic, near-black foliage and vibrant spring colour when many gardens are quiet. Compact, evergreen and low-maintenance, it adds sophistication and structure to Adelaide gardens, particularly in shaded or protected spaces. With its bold colour, architectural form and winter impact, it’s an exceptional foliage performer with year-round appeal.