Astelia chathamica ‘Silver Spear’
Kakaha, Maori Flax, Silver Spear
Astelia chathamica ‘Silver Spear’ truly is an exceptional, unique plant.
This cultivar’s upright, evergreen, sword-like sparkling-silver leaves provide a contrast in form and colour that is not found in any other plant.
With a striking display of silvery swords, the Astelia chathamica ‘Silver spear’ is one of the most recognizable members of the newly discovered Astelia family which comprises of around 25 species, originating in Chatham Island of New Zealand.
The ‘Silver spear’ variety is a hybrid between Astelia chathamica and Astelia nervosa, and it was introduced into cultivation no more than 10 years ago.
Kakaha pairs pairs or contrasts well with a wide variety of plants, but also works perfectly as a specimen in a container: black, galvanised, or terracotta all work very well.
Care & Size Guidance
Greenish yellow flowers in spring, turning to orange fruits in autumn, add to the attraction. They will grow in any soil but perform best in well draining soil and so long if they are never short of moisture.
The plant is cold hardy down to -3 degrees and evergreen, however it will require some protection from frost in winter with a horticultural fleece. If it collapses in an extremely cold winter, cut the foliage back in March and it will grow once again.
The Silver spear flax is ideal for coastal gardens as the stiff leaves are fairly tolerant to windy conditions.