Life creates life.

Are you sick of killing stuff, trying to get your plants to grow?

Or killing the plants you’re trying to grow? Oops, we’ve been there…

Whether it’s plants not reaching their growth and production potential, or struggles with pests and diseases; at Islands in the Stream Vermiculture we believe in living natural solutions to help plants thrive. Supporting plant health and vigour through biology is what we do. We also believe in creating products that you feel good about applying, and that will be good for you and the planet. It’s about growth, as Nature intended.

What we do:


Biocast+ is our signature product. It is a fully stabilised liquid vermicast extract packed with living microbes and natural plant-stimulating compounds to help your plants thrive.

Click here for more info!

Other services

We offer compost worms, worm cast, worm farm tours, educational talks and workshops, and compost/ vermiculture consultancy services.

Click here to learn more!

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

Sir Albert Howard

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...

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...

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

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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!