Cyathea medullaris

King Fern, Black Fern, Mamaku, Katata


  • Long graceful arching fronds.
  • Self shedding fronds except when young.
  • Strong slender trunk.
  • Biggest growing of ferns.


  • Planted in woodlands.
  • Suitable for medium to large gardens, in borders and general plantings.
  • Foliage is a good contrast in mixed plantings.

Growing Conditions

  • Moderately frost and wind hardy.
  • Grows in moist to very moist soil conditions.
  • Full sun to part shade.
Height Width
5 year old tree 1.0m 2.0m
10 year old tree 2.0m 2.0m
Country of Origin:   New Zealand
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