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Pilea cadierei (aluminium plant or watermelon pilea) is a species of flowering plant in the family Urticaceae, native to China and Vietnam. It is an evergreen perennial growing up to 30 cm (12 in) tall by 21 cm (8 in) broad, with dark green oval leaves, each leaf having four raised silvery patches (hence the name "aluminium plant"). With a minimum temperature of 15°C (59°F), it is cultivated as a houseplant in temperate regions. It has gained the Royal Horticultural Society's Award of Garden Merit.


  • Foliage Evergreen
  • Habit Bushy
  • Hardiness?



  • Aspect South-facing or West-facing
  • Exposure Sheltered


  • Chalk


  • Moisture Moist but well-drained
  • Soil Loam
  • pH Acid, Alkaline, Neutral


·         Ultimate height

0.1-0.5 metres

·         Ultimate spread

0.1-0.5 metres

·         Time to ultimate height

2-5 years

How to grow

Cultivation Grow under glass or in frost-free environment. Requires high humidity, branches become woody at base

Propagation Propagate by stem tip cuttings

Suggested planting locations and garden types Low Maintenance Sub-tropical City & Courtyard Gardens

How to care

Pruning No pruning required

Pests Generally pest free

Diseases Generally disease free 
Price  £ 7.00
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