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.


Philip Brown appointed chairman of Greenfern Industries

Philip Brown appointed chairman of Greenfern Industries

New Plymouth businessman Philip Brown has been appointed chairman of NZX-listed medicinal cannabis company Greenfern Industries Limited. The role was vacated by Brent King who announced his resignation on 31 October 2022.

Brown holds a significant shareholding in and has been an independent non-executive director of the Company since July 2021.

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Greenfern medicinal cannabis achieves stringent quality standards

Greenfern medicinal cannabis achieves stringent quality standards

Greenfern Industries is pleased to announce that recently received overseas lab testing results of their medicinal cannabis flower starting material has met the stringent testing targets set by the Ministry of Health’s Medicinal Cannabis Agency.
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Greenfern Industries part of trio awarded grant to research new and innovative hemp-based food and cosmetic products

Greenfern Industries part of trio awarded grant to research new and innovative hemp-based food and cosmetic products

Greenfern Industries is part of a trio that has been awarded a further Bioresource Processing Alliance (BPA) grant to research high-value products from the by-products of hemp seed processing.

Greenfern is working with Hemp Connect and Callaghan Innovation on the project which, if it can be successfully commercialised, would see new and innovative food and cosmetic products made from what would otherwise be wastage from hemp seeds.

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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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