Greenfern is listed on the New Zealand Stock Exchange under the ticker GFI.

How to invest | You can purchase shares in Greenfern through a NZX participant like Sharesies, your investment advisor or with any other NZX participant as listed here.

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About Greenfern

Greenfern Industries Limited is an entrepreneurial-led licensed medicinal cannabis and biotechnology company that also has operations spanning into the industrial hemp, hemp food and body care space.

Greenfern operates primarily from their medicinal cannabis research facility and hemp processing hub in Normanby, South Taranaki, with these facilities being powered by renewable energy generated by Greenfern’s own hydroelectric power station located adjacent to the facility on the Waingongoro River.

Greenfern is committed to environmentally friendly production of medicinal cannabis and hemp-based products. The medicinal cannabis research facility is designed around maximum efficiency and sustainability, being powered by renewable power and utilising an aeroponic production system which is renowned for its optimal water and nutrient efficiency. Greenfern’s hemp production also follows the same ethos. The hemp seed and its by-products are used for a range of different products from a high protein ingredient in a plant-based meat substitute, a hemp-based skin care range and hemp-based beverages amongst other things.

Greenfern is Toitū net carbonzero certified and is a B Corp Certified company.

Environmental Sustainability


Medicinal Cannabis

We cultivate premium and consistent quality cannabis and through research and development we are creating a pharmaceutical grade product range.

Hydro Power

Located on-site at our own hydroelectric power station. Our entire Taranaki operation is powered by clean green cost-price renewable hydro power with all the excess electricity sold back to the grid providing an additional source of revenue.


We are committed to environmental sustainability in all aspects of our processes.

View our sustainability plan here

Toitū Carbon-Net Zero Certified

B Corp Certified


Our motivation is drawn from Theo’s story, a story of the difference that Cannabis extracts can make to the lives of those suffering from epilepsy and their families.


Greenfern posts annual report

Greenfern posts annual report

If you'd like to read our annual report, click here:

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Greenfern welcomes Elizabeth Plant to the board

Greenfern welcomes Elizabeth Plant to the board

Greenfern is pleased to announce the appointment of non-executive independent director Elizabeth Plant.

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GFI's first commercial harvest meets stringent standards

GFI's first commercial harvest meets stringent standards

Greenfern is pleased to announce that it has met and exceeded the NZ minimum Quality Standards for its first commercial harvest in its new cultivation, drying and packaging facility in Taranaki.
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Small community roots. Big important vision.

We’re on a mission to show people that cannabis is something that can improve the well-being of individuals and communities.

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