Deciduous tree daisy Olearia gardneri

Key Features

  • Deciduous shrub or small tree to 3 m tall, with rough bark on spreading branches.
  • Small, light green, spoon-shaped leaves, up to 3 cm long, are arranged in opposite pairs on slightly flattened branchlets.
  • Small, white flower heads occur in clusters of 1-6, and appear at the same time as, or later than, new leaves.
  • The small seeds are fluffy for wind dispersal.

Distribution and Habitat

  • Central North Island. Known from only three locations: Taihape, eastern Wairarapa and western Hawkes Bay.
  • Occurs in lowland to montane areas in forest or on forest margins, always on high fertility sites such as river flats, limestone, stream banks, oxbows and hill slopes.


  • Habitat modification and loss.
  • Regeneration failure due to competition with grasses and weeds.
  • Smothering by old mans beard and muehlenbeckia.

Management Opportunities

  • Survey for new locations.
  • Mark known sites.
  • Protection of habitat.
  • Weed control can include spraying of grass beneath trees following seedfall to promote seedling recruitment.
  • Ensure that forest owners are aware of potential habitats and can recognise the species.

Monitoring Options

  • Check existing populations annually
  • Report new locations to DOC, NZPCN

Further Information and Support

  • New Zealand Plant Conservation Network (NZPCN).
  • Weed control - Department of Conservation, Regional Councils.
  • References
    • Dopson et al. (1999). The conservation requirements of New Zealand’s nationally threatened vascular plants. Threatened Species Occasional Publication 13. Department of Conservation, Wellington.
    • Peter de Lange, Peter Heenan, David Norton, Jeremy Rolfe and John Sawyer (2010). Threatened Plants of New Zealand. Canterbury University Press, Christchurch. 472 pp.