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KALOPANAX septemlobus

Commonly known as Castor aralia, Prickly castor oil tree

(Pictus) - an architechural tree with broad sycamore-like leaves but with stout prickles all over the stem. Clusters of white flowers in autumn
Further Reading....

£40.00 each

  • Deciduous - dark-green leaves to 35cm (14in) across from swollen, late-winter buds.
  • White
  • Height - 10m (33ft)
  • Spread - 10m (33ft)
  • Tree - spreading tree. Produces 4- or 5-petalled very small flowers followed by spherical, blue-black fruits.
  • Hardy - very cold winter - Hardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°F)
  • Full sun - likes to be sheltered by other trees and shrubs
  • Additional Features - Architectural interest -
  • Good to know - syn. K. pictus. A fine, unusual specimen tree. Flowers attract insects.
  • Pests & Diseases - none
  • Place of origin - China, Korea, Russia(S. Kurile Islands, Sakhalin), Japan(Ryukyu Islands)
  • Flower Shape - Panicles - - large panicles 20-30cm (8-12in) long
  • Hardiness - Fully hardy -
  • 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 - Summer -
  • Soil Conditions - Fertile moist well-drained soil -
  • Tree Shape - Rounded to broadly spreading -
10m (33ft)
tree - guide for size not form Average Person
  10m (33ft)

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