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  • GroundGrocer
  • GroundGrocer
  • GroundGrocer
  • GroundGrocer




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Price :
AU$33.00 (inc GST) AU$30.00 (exc GST)
Weight :
5.00 KGS
Shipping :
AU$13.20 (Fixed shipping cost)

Product Description

Biocast+ - A unique worm based biological stimulant


Note: The smaller units are packed by weight to meet Australia Post shipping requirements.  The 5L bottle will be packed to just under 5kg and the 25L drum to just under 22kg.  Please contact us for multiple unit purchases so we can get you the best freight pricing.   

Additional shipping charges apply to the 1000L. 

Please place the order and set payment to bank transfer and we will contact you with shipping costs and to process credit cards.

The secret is the two part mix:

Part A

Part A is a living liquid with all the goodness of worm cast. Our production process focuses on proliferating beneficial microbes and enhancing natural plant-stimulating compounds which are created by the worms and microbes. It contains:

  • High counts of beneficial, plant-relevant fungi, bacteria and protozoa. Think of these as the workforce for your plant, shuttling nutrients, competing with microbial pests, and creating a favourable soil environment. They are fully stabilised and in a semi-dormant state in the Biocast+ bottle.
  • Fungally-dominant. Generally fungus (such as mycorrhizal fungi) is the microbial group most damaged and depleted in our growing environments, giving plants a positive response when it is added back in.
  • Plant-stimulating growth hormones. These are hormones which encourage plant growth, for example by stimulating new root growth.
  • Enzymes. These are released by the microbes to dissolve minerals and make them plant available.
  • High amounts of fulvic acid. Fulvic acid helps to convey minerals through the cell wall, enabling more efficient utilisation by the plant, making it ideal for foliar application.
  • Small quantities of nutrients, in plant-available forms. This is not a fertiliser. The point is to use the microbes and their byproducts to unlock the nutrients already in the soil in a balanced way that is right for the plant. This makes Biocast+ safe to use on all plants, even natives.
  • No other additives – all compounds are the work of the worm and associated microbes. We’re not second guessing Nature!

Part B

Part B is a biological catalyst to wake the microbes from dormancy and put them in a state of proliferation at the time of application. It consists of a complex protein to feed the fungi, and a complex carbohydrate to feed the bacteria. All ingredients are naturally derived and certified organic.


Ways you can use Biocast+

There are four main ways we recommend the use of Biocast+. They are as a foliar application, as a soil application, as a transplant drench, and as a seed inoculate. Read on for more information on the benefits of each, what situations each is best for, and how to apply it.

On the leaves (foliar)


  • Direct contact of microbes on the leaf surface helps suppress pathogens and diseases by introducing competition. It creates a more balanced leaf surface ecology where no one thing is as likely to get out of check.
  • Fulvic acid takes the minerals that are bonded with it through the plant cell walls for an immediate effect.
  • There is a double effect because whatever drips off the leaf lands on the ground and is usable by the plant’s roots, making it our preferred application.
  • This method allows plants to develop their own soil microbe communities at a level that is sustainable to them (healthy plants build healthy soils!).

What to use this method on:

  • This is our favourite application as Biocast+ is safe to apply to the leaf surface of all plants.
  • Plants suffering from fungal diseases such as powdery mildew and black spot, and those prone to such diseases (prevention is easier that a cure).
  • Plants looking poorly that need a quick boost.
  • Fast growing plants such as vegetables.

How to apply:

  • Use a watering can or sprayer with a large droplet size (to protect the microbes).
  • In your vessel, add part B to part A and dilute with water 20:1.
  • Spray in the coolest part of the day to maximise leaf contact time before evaporation.
  • Aim for 70-80% leaf coverage just to the point of runoff. If you are using a watering can this is roughly a regular walking pace while watering.
  • For maintenance applications apply when the plant is actively growing, or once a fortnight through the growing season, up to once a week for very fast growing plants like leafy green vegetables.

On the soil


  • Hormones boost root growth.
  • Microbial associations assist plant stability by helping to create a beneficial soil environment, for example by buffering pH and acting like a water sponge.
  • Microbes and their enzymes promote maximum nutrient uptake.
  • Protects against soil diseases by introducing microbial competition, making it less likely for one species to get out of check.

What to use this method on:

  • Soils contaminated with microbial diseases such as pithium root rot and phytopthera
  • Growers using fertigation
  • Enhancing potting mixes

How to apply:

  • Add part B to part A as per mixing instructions and dilute 20:1 with water.
  • Apply as a drench or through drip irrigation (fertigation) to the root zone.
  • Water over newly planted seeds (see also seed inoculate, below).

As a transplant drench


  • Improves transplant success rates, minimising losses.
  • Microbes and their byproducts cut transplant shock.
  • Root-stimulating hormones encourage new root growth, aiding rapid establishment.
  • Protection against root diseases.
  • Inoculates the soil around the new plant with beneficial microbes.

What to use this method on:

  • Use when planting out seedlings
  • When transplanting mature plants
  • When transplanting small seedlings in a nursery.

How to apply:

  • In your bucket combine part A and part B as per mixing instructions. Dilute with water 20:1.
  • Submerge root ball in Biocast+ prior to planting.
  • Saturation time depends on the size of the root ball. E.g. Small seedlings 3-5 minutes, large mature trees up to 2 hours.

As a seed inoculate


  • Puts beneficial microbes where they are needed from the start of the plant’s life.
  • Can promote rapid establishment of the seedling.

What to use this method on:

  • Any seed – however, you may find it impractical when hand planting smaller seeds.
  • Effective way to spread microbes in a broadacre/ pasture setting

How to apply:

  • Use undiluted.
  • Immerse seeds to coat. Soaking not required for inoculation.
  • For large quantities of seed an auger or cement mixer can be used to coat the seed. As little as 5L per tonne is required as long as the Biocast+ contacts each seed.

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