This fine mamaku, growing close to the house in a friend’s Eastbourne garden, was planted many years ago by his father. A second, much younger specimen growing elsewhere in the garden was transplanted as a seedling from a bush garden in Kelburn, where I used to live.
“Cyathea medullaris, popularly known as the black tree fern, is a large tree fern up to 20m tall. It is distributed across the south-west Pacific from Fiji to Pitcairn and New Zealand. It is called mamaku, katātā, kōrau, or pītau in the Māori language.” (Wikipedia)