Standard Tree Evaluation Method - STEMô

Standard Tree Evaluation Method - STEMô

Following many years of collaboration and development from various stakeholder groups in New Zealand, this tree evaluation method was first published in September 1996 by Ron Flook.  It quickly became the most widespread method of evaluating heritage and notable trees for district plans around the country.  It is now used by more than 35 Councils in New Zealand. See the author's note.

In August 2012 the New Zealand Notable Trees Trust became the copyright holder of STEM™.  The NZNTT is indebted to the Flook Family for allowing the Trust to become the new home and controlling authority for this valuable tool.

STEM™ scores can be entered on records for trees listed on the New Zealand Tree Register.  This enables the benchmarking and comparison of trees around the country.

Copies of the publication can be purchased directly from the Trust or from Touchwood Books.

Local Authorities currently using STEM™

Carterton Kapiti Queenstown Lakes Thames-Coromandel
Dunedin Manawatu Rangitikei Timaru
Far North Marlborough Rotorua Upper Hutt
Gisborne Matamata-Piako Selwyn Waitaki
Gore Masterton South Taranaki Wellington
Hastings Napier South Waikato Western Bay of Plenty
Hauraki Nelson South Wairarapa Whakatane
Horowhenua Otorohanga Tasman Whangarei
Hutt City Palmerston North Taupo Whanganui
Kaipara Porirua Tauranga  
                                                                                                                Updated 04 Nov 2018

STEM™ is a Trademark of the New Zealand Notable Trees Trust.
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