Grow Guide: Euphorbia ‘Miner’s Merlot’

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Bold foliage and subtle blooms for year-round interest

🌿 Plant Overview

  • Botanical Name: Euphorbia ‘Miner’s Merlot’
  • Common Name: Miner’s Merlot spurge
  • Family: Euphorbiaceae
  • Type: Evergreen perennial or subshrub
  • Hardiness: RHS H4 (–10°C to –5°C)
  • Height & Spread: 45–60cm tall × 45cm wide
  • Foliage: Deep burgundy-purple with a silvery sheen
  • Flowers: Lime-green bracts with maroon centers, in spring to early summer
  • Scent: Not fragrant

🌱 Planting

  • Best Time to Plant: Spring or early autumn
  • Soil: Well-drained soil is essential
  • Soil Type: Grows well in loam, chalk, or sandy soil
  • Not Suitable For: Heavy clay unless amended with grit and compost for drainage
  • pH: Tolerates neutral to alkaline soils
  • Light Requirements: Full sun to light shade
  • Spacing: Space 40–50cm apart

Tip: Avoid planting in areas prone to winter waterlogging – roots are prone to rot in soggy soils.


🌼 Seasonal Interest

  • Flowering Time: April to June
  • Foliage Interest: Year-round, particularly striking in winter and early spring

🌦️ Care & Maintenance

Watering

  • Drought tolerant once established
  • Water new plants during dry spells until roots are established

Feeding

  • Not heavy feeders
  • Light mulch in spring with compost or fine gravel to keep weeds down

Pruning & Tidying

  • Cut spent flower stems back to the base after flowering
  • Wear gloves when cutting: milky sap can irritate skin and eyes

Pests & Diseases

  • Generally pest- and disease-free
  • May get root rot in poorly drained soils

🌸 Design Tips

  • Great for modern borders, gravel gardens, Mediterranean or dry gardens
  • Combines beautifully with grasses, Alliums, Eryngiums, and Sedums
  • Colour contrast works well against silver-leaved or lime-green foliage plants

🪴 Container Growing

  • Grows well in containers with free-draining compost (e.g., John Innes No. 2 + grit)
  • Choose a sunny, sheltered spot
  • Ensure pots do not sit in water in winter

✂️ Propagation

  • By Cuttings:
    • Take softwood or semi-ripe cuttings in late spring or early summer
    • Allow milky sap to dry before inserting into compost
  • By Division:
    • Divide established clumps in early spring if needed, but not often required

⚠️ Safety Note

  • All parts are toxic if eaten
  • Milky sap can irritate skin and eyes – always wear gloves when handling or pruning

🔁 Troubleshooting

ProblemLikely CauseSolution
Wilting or rotPoor drainage, especially in winterImprove soil or lift and replant in a drier spot
Lack of colourToo much shadeMove to sunnier position
Leggy growthAgeing stems or low lightCut back to base in early spring

🌿 Summary

Euphorbia ‘Miner’s Merlot’ is a tough, architectural plant perfect for modern and drought-tolerant gardens. Its year-round foliage interest and striking spring flowers make it a valuable plant for structure, colour, and texture in sun or light shade.


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