BIG BIO® Further Information

BIG BIO® logo

BIG BIO® is our brand of fertiliser products.

We manufacture the following products :

BIG BIO Organic Fertiliser™

Our new product is called BIG BIO Organic Fertiliser™ and is derived from food waste and designed to close the loop on food waste by returning the nutrients from food waste to the soil. The product contains useful amounts of Nitrogen (N), Potassium (P), Phosphorus (K), Calcium (Ca), and Sulphur (S) in plant available form. Trace elements include Iron (Fe), Manganese (Mn), Boron (B), Copper (Cu), Zinc (Zn) and more. The product is also rich in soil microbes, the living organisms that are so vital to soil health.

BIG BIO Organic Fertiliser™ is in the final stages of development and set to change the game in the new circular economy. Read More

BIG BIO® Worm Products

The worm products come from Australia’s largest urban worm farm, at our factory in Somerton, in Melbourne’s north. We recycle food waste from local sources into a superfood for the worms and they produce these rich microbial soil amendments used by so many organic gardeners around the world. If you don’t have the time to manage your own worm farm, or cannot produce enough castings or leachate for your garden, BIG BIO® is your solution.

Australian soils often need an extra boost of biology. BIG BIO® improves clay soils, dry soils, and over time can help reduce soil erosion.

At Circular Food, we are harnessing the power of the humble earth worm in order to replenish the soil the way that nature intended. The worm is one of nature’s greatest assets; a tireless recycler, it converts nutrients from organic waste into a plant available form.

Both products are teeming with millions of beneficial microbes to help you build healthy, resilient, soft, absorbent soil. Healthy soil, healthy plants.

BIG BIO® is full of active, natural biology. There is more microbial life in a handful of fertile soil, than all of the human life on earth. Most of it can’t be seen without a microscope, but this life is intrinsically linked to the prosperity and sustainability of the human race.

BIG BIO® suppresses plant disease and pathogens. BIG BIO® actually improves the plant’s innate defence; their cell walls. This provides the plant with a greater immunity against disease.

BIG BIO® improves soil water retention. BIG BIO® castings absorb water, and can retain it long after it rains. This means that once the castings are turned into the top soil, your plants will have water available in the soil long after it rains.

BIG BIO® increases general plant health and yield. BIG BIO® contains essential macro and micro nutrients for plant growth, and elements such as Nitrogen (N), Potassium (P), and Phosphorus (K) in plant available form. These elements provide plants with additional energy, meaning they can use this energy to grow bigger leaves, and larger fruit. It also means plants are able store away energy for fighting off pathogens and pests, as well as improving water intake and nutrient distribution. Have you noticed pests don’t attack your healthy plants?

BIG BIO® is non-toxic, and 100% organic. This fertiliser is completely natural, and non-toxic. There are no complicated application methods, or warning signs on our labels. It is simply the product of nature, for natural healthy soil.

Liquid Dilution Rates:application rates liquid

BIG BIO® Usage Instructions pdf

WT ad - jpeg


“Root development and health was observed to be more profound in plants treated by BIG BIO.”

– James Clarke – General Manager Brite Plants Nursery


“We have set out to rejuvenate this land and have found that by using Worm Liquid our soils have improved greatly resulting in increased production.”

– Peter Johansen – Commercial Grower


“We have no hesitation in recommending the product for use on any cattle or orchard property… We have found the product has gradually returned our depleted soils to its original state. We have noticed far more life and vigour as well as the general health of our soil, crops and cattle greatly improved.”

– Norm and Paul Lambert – Dairy Farm & Citrus Orchard


“All my paddocks are treated with Worm Liquid and I have a high build up of microorganisms, the soil smells sweeter, the cattle will graze where the worm liquid is spayed rather than that which has not. My cattle always have beautiful shiny coats and top the local market.”

– Kevin Ford – Cattle Farmer

(Some of these testimonials were written for Vermicrobe International. In 2016 Circular Food acquired this business and all of its customers. The product previously produced by VI is the same product produced today by Circular Food.)

australia-icon For retail quantities, you can find your nearest distributor here