What Are Worm Castings?
Worm castings—also called vermicast—are the crumbly, coffee-ground-like particles expelled by composting worms after they’ve digested organic matter. Think of them as nature’s slow-release, microbe-rich fertiliser: packed with plant-ready nutrients, humic substances and a living army of beneficial bacteria and fungi that turbo-charge soil life.
Unlike raw compost, castings are gentle (won’t burn seedlings) and odour-free, making them ideal for balconies, indoor grow tents or sprawling market gardens alike.
Why Microbe-Charged Worm Castings Beats Ordinary Vermicast
Not all castings are created equal. Our Microbe-Charged Worm Castings are produced from lucerne-fed Eisenia fetida (red wigglers) and enriched with volcanic rock dust, yielding billions of active microbes per gram and a screened, free-flowing 10 mm texture.
What that means for you:
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Higher biological activity – more root-friendly microbes to unlock nutrients.
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Balanced N-P-K plus trace minerals – no nutrient gaps or spikes.
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Moisture-holding humus – keeps soil springy in summer heat.
Top 9 Benefits for Aussie Gardens
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Explosive Root Growth – auxin-producing microbes stimulate longer root hairs for faster nutrient uptake.
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Water-Wise Soil – humic substances boost water retention, slashing dry-season stress.
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Built-In Pest Resistance – chitinase-producing bacteria disrupt sap-sucking pests naturally.
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pH Buffering – castings stabilise swings, keeping the sweet spot for most veggies and natives.
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Nutrient Density – gentle, slow-release nutrition means no “feed, flush, repeat” nightmare.
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Better Flavour & Aroma – higher brix levels translate to sweeter strawberries and terpene-rich herbs.
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Environmental Win – diverts organic waste, sequesters carbon and cuts fertiliser runoff.
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Kid- & Pet-Safe – no synthetic salts or harsh odours.
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Stackable with Other Inputs – pairs perfectly with TurboDirt, compost or liquid kelp.
How to Use Worm Castings
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Garden Situation |
How Much Castings? |
How Often? |
|
New potting mix |
10–20 % by volume |
At planting |
|
Veggie beds |
1 cm top-dress (≈1 L / m²) |
Start of each season |
|
Houseplants |
2 cm top-dress, gently mixed |
Every 2–3 months |
|
Hydro / Coco |
5–10 % in media blend or weekly worm-tea drench |
Ongoing |
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Blend or Top-Dress – Sprinkle castings, scratch lightly and water.
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Brew Worm-Tea – See recipe below for foliar + root feeding.
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Seedling Safety – Castings won’t burn; ideal for germination trays.
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Stack & Save – Combine with Microbe-Charged Worm Castings and Root Roids for a complete biological kick.
DIY Worm-Tea Recipe (Step-by-Step)
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Gear Up – 20 L bucket, aquarium air stone, dechlorinated water.
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Load Castings – 2 cups of castings in a mesh bag.
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Add Food – 1 tbsp unsulfured molasses to wake the microbes.
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Bubble – Aerate for 24 h (shade, < 26 °C). Frothy head = active brew.
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Apply Fresh – Drench soil or spray leaves within 4 hours. No storage—biology dies fast without oxygenation!
Tip: For disease-prone tomatoes, add ½ tsp kelp meal to further boost immunity.
Application Rates Cheat-Sheet
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Seed Raising Mix: 1 part castings : 5 parts coco or peat.
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Fruit Trees: 3-5 L per mature tree, spread to drip line.
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Lawns: 3-5 L per m² top-dress after coring.
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Native Beds: 5 % by volume to respect low-P tolerance.
Bookmark this table or print it for the shed wall—future-you will thank you.
FAQ
Will castings attract fungus gnats?
No—properly harvested castings are stable and drier than compost, so they don’t create gnat nurseries.
Can I overdo it?
You’d need wheelbarrow loads. Realistically, anything under 25 % by volume is safe.
Do I need to rest soil after adding castings?
Nope. Plants can be transplanted immediately—castings are “cool” fertiliser.
Shelf life?
Store sealed, cool and dry. Microbial counts remain strong for 6–12 months.
Ready to Grow?
If you’re itching to lift yields, boost flavour and bullet-proof your plants, grab a bag of Microbe-Charged Worm Castings – Premium Lucerne-Fed Organic Fertiliser now. Your soil (and taste-buds) will thank you.
“Fantastic quality—super dense and free-flowing compared to others I’ve tried… seedlings are happy.” – Jorey ★★★★★
Need deeper soil-building tips? Swing over to our Living Soils & Organic Gardening hub and keep the learning rolling.
Happy growing, legend!
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