RNZIH Directory

Keith Hammett

Keith HammettDr K.R.W. Hammett is a private professional plant breeder based in Auckland.

He has developed the grounds of his 4 ha property as an arboretum and the site of numerous plant breeding programmes (including Amaryllis, Arthropodium, carnations, Chrysanthemum, Clivia, Cosmos, dahlias, Dianthus, Helianthus, Lathyrus, Mimulus, Nemesia, Petunia, Polyanthus, Sandersonia, and Zantedeschia).

To date more than 300 fully commercial cultivars have been produced. Many of these have been exhibited and marketed overseas. He has close working relationships the Auckland Regional Botanic Garden, the University of Auckland, Unitec Institute of Technology, and other Research Institutes.

Keith has written numerous articles for horticultural publications worldwide, authored books and produced scientific papers.

View Dr Hammett’s profile on his personal website: www.drkeithhammett.co.nz.


  • PhD
  • BSc (Hons)

Industry & Professional Associations

  • President of the Royal New Zealand Institute of Horticulture (2013 - present)
  • RNZIH – Associate of Honour
  • RNZIH Plant Raisers’ Award
  • National Dahlia Society of New Zealand
  • New Zealand Clivia Club
  • Examiner for Plant Variety Rights Office


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Last updated: December 15, 2015