Welcome to the home of Biocast, by Island Biologicals!
If you’re looking to grow plants that are full of LIFE,
from soil to seed, then you’re in the right place.
What would you like to do today?
Welcome to the home of Biocast, by Island Biologicals
If you’re looking to grow plants that are full of LIFE,
from soil to seed, then you’re in the right place.
What would you like to do today?
At Island Biologicals we believe that life creates life.
Biocast supports the whole plant, including its microbiome, thanks to the life-stimulating compounds of earthworms and beneficial microbes.
As a grower it can support you to add health and vigour to your high production systems, to get plants through stressful times (such at transplant, or climate extremes), or give you a stepping stone to get off the inputs treadmill.
It is a high quality, natural biostimulant 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
Upcoming Events
Farm-scale Vermicomposting
Next round starts Monday, 20 April 2026
This 4 week live online group training program aims to equip you with everything you need to know about successfully running a vermicompost system at a farm scale – it’s not just a bigger version of a backyard worm bin!
Held via Zoom over four sessions with additional online resources, our founder and chief worm wrangler Lee Fieldhouse will share his accumulated wisdom from over 10 years vermicomposting and consulting at the farm scale, with an emphasis on making it relevant to your situation.
Please sign up to our newsletter to be notified when the next round is announced. This course is also available to be delivered privately to individuals or groups, contact us if you’re interested.
Biocast: liquid vermicast biostimulant
By Island Biologicals
Made in the Manning by Island Biologicals
Biocast is made by Island Biologicals. We are an Australian, family-owned and operated company based on Oxley Island, part of the beautiful Manning Valley of NSW. Our founder and Chief Worm Wrangler is Lee Fieldhouse, who has a passion for working with natural processes to bolster food production.
Our mission is to help Australian farmers add more life to our land by reconnecting with and working with natural processes when growing plants.
News & grower stories
Bring a shovel
If being able to see what is happening underground is the gateway to great management of your plants, then the humble shovel is the key. Don't leave home without one! If you're only looking above the ground, you're only looking at half the story. We have a patch...
Five tips for improving water infiltration
Whether your water's coming from rain or irrigation, you want it getting where it counts - down to the root zone of your plant; and, ideally, deep into the soil to keep things ticking on later too. We don't want to waste that light sprinkle with it all evaporating...
How to do a soil water infiltration test
Here we run you through the steps to do a simple water infiltration test, including a how to video.
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...
Grower stories: Gabe and Fiona’s flower nursery
Gabriel and Fiona Poole, Pinnacle Nursery Wingham. "We grow cut flowers in coco peat bags and pots in a semi hydroponic system. In about April 2015 we started using the Biocast through the fertigation system. Though we were quite sceptical and reluctant at first,...
> If you have a Biocast story to share we would love to hear it! Call or email Lee on 0429 197 596 or lee@islandbiologicals.com.au
QUESTIONS?
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!












