NutriHealth International


All people can live a healthy life through a complete biological balance in the soil.


To empower farmers to produce life-enriching food.


Honour nature – know that it knows.
Support the leaders in natural farming practices.
Connect and build the regenerative agricultural community.

NutriSoil Team
Company Background

NutriSoil Pty Ltd is the company name most commonly recognised by all as NutriSoil, also the name of the signature product manufactured, distributed and wholesaled direct to farmers. The original business name is NutriHealth International. This business was started by Graham and Lyn Maddock in 1999, where its’ operations began on the family property in Yackandandah, Victoria.

Our Story

NutriSoil biological solution is an organically certified, award winning, concentrated worm liquid, produced from a unique Vermiculture Recycling System.

A farm chemical accident for Graham Maddock in the mid-1980s triggered a rethink of chemical and fertiliser applications and set in motion the establishment of the now thriving all natural fertiliser company. While recovering from serious health problems caused by the chemical exposure, he thought about the risks that using chemicals posed to other farmers and also the health of the consumer at the end of the supply chain. This led him to develop the biological fertiliser.

Read the NutriSoil Story

Daughter, Rachelle Armstrong (nee Maddock), came back to the family farm in 2005, as she had also began to connect human health with food production & farming practices. Rachelle & her parents formed a partnership to build the business.

More about Rachelle

Rachelle supported her parents Graham and Lyn in selling the family farm and moving the business to Baranduda, close to Wodonga. This was more central for business services, such as freight and also allowed them to purpose-build the NutriSoil Education and Production Facility. It was opened by the Cr Rodney Wangman former Mayor, City of Wodonga on the 25th July 2007, before an audience of 140 farmers.


Upon completing a CertV in Business in 2005, supported by the federal government program, New Enterprise Incentive Scheme (NEIS), Rachelle was able to quickly ‘learn the ropes’ for building the fledgling business.

MATTIA RINGE – Their first employee, who met Rachelle at the NEIS course and established an excellent office and accounting foundation for building the buisness.

JUSTIN ARMSTRONG – Justin supported the rapid early growth and need for a full time role operating logistics and has been our all-round problem solver in the business. He also became Rachelle’s husband.

DARREN MADDOCK – Graham’s son, Darren, joined in 2009 to support Graham in the Production role.

NAKALA MADDOCK – Nakala, (Darren’s wife) joined us in 2014 to focus on our customer relationship services, also introducing the Biological Farming Roundtable and podcasts.

GILLIAN GIBSON – Gill, (Rachelle and Darrens Aunty) joined the team in 2018 to assist in processing orders.

The business operates nationwide and has partnered with key broadacre farmers to develop a successful model of regenerative farming practices. NutriSoil sees empowerment of farmers as integral to developing the regenerative agricultural movement and strives to deliver independent, scientifically-based education Australia-wide, with significance for global health.

NutriSoil Liquid Biological Fertiliser is Allowed Input with Australian Organics!

Moral Fairground awarded NutriSoil as the most inspirational ethical enterprise in Australia. More...

Australian Organic Annual Awards Winner GOLD 2016.