About the Wilding Tree Risk Calculator

The Wilding Tree Risk Calculator must be used by foresters to assess the risk of wilding conifers spreading when:

• planning new forests
• replanting with a conifer not previously planted.

If your score is less than 12, planting or replanting is permitted. If it is 12 or higher, you need resource consent.  

The calculator is available in Appendix 1 of the Wilding Tree Risk Calculator guidelines.

Download the Wilding Tree Risk Calculator and guidelines [PDF, 1.7 MB]

Find out more

• NES-PF risk assessment tools guidance [PDF, 1.7 MB]
• NES-PF

Other NES-PF tools

• Fish Spawning Indicator
• Erosion Susceptibility Classification