If you are in New Zealand on a visitor visa you may apply to have the conditions of your visa varied to allow you to do seasonal work (planting, maintaining, harvesting, and packing crops) in the horticulture or viticulture industry.
You can only get a variation for this purpose once in each visit to New Zealand. The maximum time you are allowed to work is for six weeks. To get a variation to do seasonal work, you must:
Before you can apply for a variation of conditions under this category, the Ministry of Social Development must have declared a seasonal labour shortage. You can only work in region(s) where a labour shortage has been declared.
List of employers approved under Supplementary Seasonal Employment (SSE)
Office and fees finder
Recognised Seasonal Employer (RSE) List