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Due to very high order volumes, there is an order limiting system in place at present. Please be aware that courier deliveries can be delayed, due to high volumes. The nursery and gardens are open 10.00 to 16.00 everyday, all are welcome.

PROTEA Leucadendron argenteum

Commonly known as Cape silver tree

Soft shiny silver leaves with velvety hairs and silver cone-shaped flowers. Endangered in the wild in South Africa
Further Reading....

Estimated availability autumn 2021 - Not yet confirmed. Could be any time between September and December.
£25.00 each

Delivery Information Estimated availability autumn 2021


  • Evergreen - leaves 10-15cm (4-6in) long, yellowish-green on males and greenish-silver on females.
  • Green - greenish white or silver
  • Height - 6-10m (20-33ft)
  • Spread - 2-4m (6½-13ft)
  • Tree - erect, pyramidal to columnar small tree. Smooth, grey bark with distinctive horizontal leaf scars. Produces spherical flowerheads to 4cm (1½in) across, yellowish green on male trees, greenish silver on female, surrounded by lustrous bracts to 2cm (¾in) long. The silvery cones persist for several years.
  • Heated greenhouse - warm temperate - Can be grown outside in summer. Plant can withstand temperatures down to 5°C (41°F)
  • Full sun
  • Additional Features - Endangered in the wild - These plants are listed on the International Union for Conservation of Nature's list of 'Red Plants'. This is a list of threatened species in the wild, they are either critically, endangered or vulnerable to extinction.
  • Pests & Diseases - red spider mites, under glass.
  • Place of origin - South Africa (Northern Cape, Western Cape, Eastern Cape)
  • Resistant to honey fungus - These plants have little or few problems with honey fungus.
  • Garden Location/Conditions - Greenhouse / conservatory - Not the sort of plants to be grown outside where there are likely to be frosts. These plants need to be grown in a conservatory or cool greenhouse or at least brought inside for the winter
  • Hardiness - Tender (greenhouse & conservatory) -
  • Pruning group - Pruning group 1
    Suitable for: Deciduous and evergreen trees, and some deciduous shrubs.
    Pruning: Minimal pruning required. Prune wayward or crossing branches to maintain a healthy framework.
    When: When dormant in the late winter/early spring. Some in the summer/autumn to prevent bleeding of sap.

    RHS group 1
  • Seasonal Interest - Spring -
  • Summer
  • Soil Conditions - Acid / ericaceous loving -
  • Free draining sandy soil - light, gritty soil. Will not tolerate cold, wet soil.
  • Tree Shape - Broadly conical -
6-10m (20-33ft)
tree - guide for size not form Average Person
  2-4m (6½-13ft)

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