The Plant Runner - Soil and Microbe Booster

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Some things just belong together. Like this mix of biochar and frass. Frass is an all-natural fertiliser made from insect manure and bursting with nutrients and good microbes. Biochar is a charcoal-like substance that comes from heating raw materials without oxygen. They’re an unlikely couple, but they’re a strong one.

Frass holds about 240 million microbial colony forming units per gram. It holds up to 200 times more nutrients than worm castings or compost with more diversity of microbes too. They bring life to your potting mix by improving the structure of the soil and providing nutrients to your plants as they break down organic matter. 

Frass is full of mainstream and indie hits. On its own, it boasts a nitrogen-phosphorus-potassium (NPK) ratio of 4:2:2. But it’s still full of those underrated trace nutrients to help your plants flourish: iron, copper, zinc and so much more.

It’s got some good chitin; the insect exoskeletons that are a natural addition when making frass. This secret weapon activates your plant’s natural defences against pathogens, like the ones that cause root rot. It increases the availability of nitrogen to your plants.

Biochar keeps plants kicking through dry spells and overwatering. It boosts the capacity of soil to hold nutrients and water, complementing the richness of frass.

Separately, frass and biochar do good things. Together, they’re an iconic duo.

Both are sustainably sourced, carbon-negative and Australian-made.



Biochar and Frass

Nutrient and Microbe Analysis:

Total nutrients: (N) Nitrogen 2.1%, (P) Phosphorus 0.8%, (K) Potassium 1.1%, (CA) Calcium 6.5%, (Mn) Magnesium 0.7%, (S) Sulfur 0.3%, (Na) Sodium 0.2%

Trace nutrients: (Al) Aluminium, (B) Boron, (Co) Cobalt, (Cu) Copper, (Fe) Iron, (Mo) Molybdenum, (Mn) Manganese, (Ni) Nickel, (Se) Selenium, (Si) Silicon, (Zn) Zinc

Frass Bacteria and Fungi cell count: 240 million colony forming units (CFU) per gram.



Top Dressing:

Add 1-2 teaspoons sprinkled around the root zone, once every three months. 

Blending into Potting Mix:

Add between 0.1 and 1 parts Soil and Microbe Booster to 10 parts potting mix. Mix through well before potting

For Compost:

Add between 0.1 and 1 parts Soil and Microbe Booster to 10 parts compost. 


Safety Directions:

Not for human consumption.

Keep out of reach of children and pets.

Store in a cool dry space.


Made in Melbourne, Australia.