ongaonga
about.
Urtica ferox | ongaonga, tree nettle
NOTE | The tree nettle is one of New Zealand's most poisonous native plants.
It thrives in lowland temperate bush, including disturbed areas like stock-damaged scrubland and forest edges. This remarkable plant tolerates temperatures down to -8°C, shedding leaves in colder climates. It is the primary food source for the larvae of both the New Zealand Red Admiral (Bassaris gonerilla) and Yellow Admiral (Vanessa itea) butterflies. Easily grown from fresh seed though not advisable to be cultivated due to its poisonous nature and as such is only suitable for restoration.
typical habitat.
forest margins
scrubland
lowland forest
coastal forest
drainage.
moist
well drained
sun.
full sun
partial shade
mature specifications.
height | 3m
width | 2m
pollinators calendar.
flowering | November - March
fruiting | December - May
did you know?
New Zealand's tree nettle is one of its most poisonous native plants. Its leaves and stalks are armed with stinging hairs that inject toxins, causing immediate pain and a rash. Exposure can lead to severe reactions in animals and humans, including neurological issues, respiratory distress, and convulsions, sometimes proving fatal.
