Biocast liquid vermicast biostimulant

Biocast: liquid vermicast biostimulant

By Island Biologicals

Life Creates Life

Welcome to the home of Biocast. If you’re looking to grow plants that are full of LIFE, from soil to seed, then you’re in the right place. At Island Biologicals we believe that life creates life. Biocast supports the whole plant, including its microbiome; giving you a stepping stone for getting off the inputs treadmill; for supporting healthy, high production systems; and for helping plants through stressful times. It is a product that you can feel good about applying, and that will be good for you, your family, your customers and your land. 

“The health of the soil, plant, animal and man is one and indivisible”

Sir Albert Howard

What is Biocast?

Biocast is a liquid vermicast biostimulant. What that means is that we’ve extracted our high-quality worm poo (cast) into water, and with it all the life-stimulating compounds produced by the worm and associated microbes. These include living microbes (bacteria, fungal spores, and protozoa), growth-stimulating hormones, enzymes, autoinducers, fulvic acid and trace minerals. These all work together to benefit plants and soil life. Biocast can be applied as a foliar, seed dressing, transplant drench or through fertigation systems. 

Bottles of Biocast

Product information

Go here for information on:

    • What is Biocast
    • Part A and part B explained
    • How Biocast is made
    • Quality assurance
Biocast foliar application


Go here for information on:

    • Foliar (leaf) application
    • Soil application
    • Transplant drenches
    • Seed inoculation

News & grower stories

A Forest for Coralie

A Forest for Coralie

This week our daughter Coralie turned 1. She got gifts from grandparents, aunts and uncles, but not a thing from us. That's because we're buying her (part of a) forest. Watching her play, we know Coralie is best entertained at this age by real world things - chairs...

Grower stories: Del’s backyard

Delwyn Thomas. Horticulturist, Floriculturist and design Florist, author of 'What Cut Flower is That'. "Almost three years ago in late spring, Lee offered to spray my garden with Biocast+. Within a few days I was fascinated to notice there was no powdery mildew on the...

Grower stories: Peter’s orchids

Peter Bisoglio. Former owner and grower at Forest Glen Roses, Glenorie. "As a former nurseryman and cut flower grower I am quite passionate about and spend considerable time planting , maintaining, tending and extending my garden, I grow a range of vegetable crops to...

Why we love regenerative agriculture

You may not have considered it, but regenerative agriculture applies even to worm farmers, like me. I love being part of people’s regenerative journeys, and it has reinvigorated my passion for what we do. Our farm is on Oxley Island, an island in the delta of the...

> If you have a Biocast story to share we would love to hear it! Call or email Lee on 0427 197 596 or

Get new grower stories, news and event information straight to your inbox


One of our favourite parts of business is chatting with people interested in exploring biological solutions. We are happy to discuss how Biocast+ or our other products and services apply in your particular situation, so please contact us today!