Frass – Living Soils


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Insect frass is an organic fertiliser. Unlike bat guano or wormcasts, frass comes entirely from herbivore insects; this means you are essentially feeding back digested plants to your plants making it a perfect, well-rounded form of plant food. Not only this; it contains large quantities of chitin!

The importance of Chitin

Chitin is a naturally occurring molecule that is found in the shells of crustaceans like lobsters and crabs, as well as the exoskeletons of insects. Chitin’s benefit to plants is that it causes them to be fortified from their cell walls out. It also seems to make the plant resistant to powdery mildew, late and early blights, botrytis, and certain root rots as well as root nematodes.

The presence of chitin triggers plants to think that insects are eating them, causing them to build up their cell walls and release natural insect toxins as a defense. 

Benefits of using this product

Because insect frass is made entirely from digested plants, it’s full of the nutrients that plants require to grow robustly. Plus, millions of beneficial microbes from the guts of insects. 

Chitin triggers the immune systems of plants causing them to rev up and defend themselves against predators like root-feeding nematodes and disease pathogens in the soil.

Unlike other 'certified' frass (where the insects are farmed for the reptile and pet industry), there are no residues of pupating inhibitors and/ or growth hormones in our frass.

Nutrient analysis

  • Total Nitrogen (N)  .....2%
  • Phosphorous (P) ........2%
  • Potassium (K) .............2%

How to use it

Use it as a top dressing: add it to the top of your growing medium and water in well after application.

Suggested dosage

Soil: Up to 1 tbsp per gallon of substrate every 2 weeks through the vegetative stage. Coco: Double the soil quantity.

[Note: We don't advise adding frass in the flowering stage as it contains too much Nitrogen and may impact flowering potential].