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Powerful Poop-Insect Frass Plant Food

Updated: Apr 27

Did you know insect poop, also known as frass, is a great plant food?

I experimented with Insect Frass as a plant food in my garden beds, for my seedlings and my houseplants. I have found that it works just as well as Fish/seaweed emulsion but does not come with the stinky smell you find with fish emulsion. I loved insect frass as a plant food so much that I now sell my own line of Insect Frass Plant food called The Ever Hopeful Gardener's Kickass Frass.


The Insect Frass in my plant food comes from the excrement of Black Soldier Fly Larvae. Black Soldier Fly Larvae are some of the best composters in the world and their resulting poop is a great fertilizer.

The Insect Frass in my Kickass Frass Plant Food comes from a company that specializes in insect farming. Insect farms are more sustainable as animal feed sources than fishing. (Fish meal is used in livestock feed). BSL is sold as a food source for pet reptiles and amphibians.

Insect Frass tea is a great non-smelly alternative to fish and seaweed emulsion. Anyone who has ever used fish/seaweed emulsion knows the distinct and quite unpleasant smell about which I am talking. Insect Frass tea is made by adding 1/2 a cup of frass to a gallon of water and then used as a root drench within two hours of mixing it.

I would go so far as to say that Insect Frass doesn't just not smell bad, but actually smells like brownie mix. It is strange and I don't know how to explain it, but it is what it is. I don't know about you, but I would rather smell brownie mix while feeding my plants, than dead fish.

Like fish and seaweed emulsion, Insect Frass has a low NPK ratio of 3-2-1 so it won't burn your plants or seedlings.

Insect Frass can be applied every 2-4 weeks as either a tea/root drench or mixed directly into the soil.

Soil Microbes prefer lower NPK numbers, less than 10-10-10 so this is a great way to feed your soil (microbes) which will in turn feed your plants. Healthy, happy soil microbiology equals healthy, happy plants. Natural plant food usually has lower levels of nitrogen, phosphorus and potassium than synthetic plant food, but natural plant food promotes long-term health and longevity. Visible results may take longer with natural plant food, but you will be rewarded with both plant and soil staying healthier for longer.

In addition to being a great plant food, Insect Frass contains Chitin. Chitin a substance found in the sloughed off exoskeletons of the Black Soldier Fly Larvae. Chitin elicits a protective response in plants wherein plants strengthen their cell walls in preparation for a perceived insect attack which in turn makes the plant less desirable for an insect to eat. An article on the benefits of chitin can be found here.

You can order The Ever Hopeful Gardener's Kickass Frass Plant Food here. The Frass is available in 7oz bags. You can purchase1 bag for $7.50 or 2 bags for $13.00. Frass lasts for 24 months so it won't go bad before you have time to use it all.

Here are some scientific articles I have read in regards to insect frass and chitin as they pertain to plant growth, defense against pests and pathogens and crop yield.

Thank you to everyone who has purchased the frass. Let me know what you think!!

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