Our Products
Two products from one insect. Whole dried larvae for birds and fish, and the frass left behind for soil. Both supplied from 300g packs to full pallets and bulk containers.
Natural Insect Nutrition For Birds & Fish
Brook & Hollow comprises 100% high-protein, high-calcium dried black soldier fly larvae, providing an ideal natural supplement for wild birds and woodland species within conservation areas. The larvae are carefully dehydrated to preserve their original shape and size, successfully encouraging natural open-environment foraging behaviour. The balanced nutritional composition supports strong body mass, optimal feather development, skeletal strength, and successful wild breeding cycles.
For professional estates, land managers, gamekeepers and conservation trusts focused on biodiversity projects, Brook & Hollow provides the invertebrate protein these species evolved to hunt. It is highly effective at holding birds on managed ground, because a bird returns to where the searching was worthwhile, and occupying birds through the weeks when they are most likely to move.
Brook & Hollow larvae are reared solely on pre-consumer, vegetable-based substrates to ensure they are rich in essential amino acids and healthy fatty acids. It is naturally high in antimicrobial lauric acid to support robust gut health and overall flock resilience.
For the home garden and pond, Brook & Hollow offers a natural way to nourish diverse local wildlife. These larvae are rich in functional fats to help wild birds through demanding breeding cycles and post-moult recovery, ensuring that your local ecosystem receives the essential nutrients needed to thrive.
For application rates, pack sizes and more information for farms, estates, shoots and conservation projects, click here.
Bioactive Soil & Plant Restoration
Root & Rise is a premium, 100-percent bioactive organic fertiliser derived entirely from insect frass. It consists of the nutrient-rich, soil-restorative castings of Black Soldier Fly Larvae, offering a powerful alternative to synthetic chemicals. This innovative formula delivers highly bioavailable NPK, organic matter, and humic acids to build long-term soil health and stimulate vigorous root development.
For commercial farmers and regenerative growers, we provide a potent biological activator that contains up to double the organic nutrients of ordinary compost. Root & Rise is rich in natural insect chitin, which activates a plant's natural defence mechanisms. Enriched with billions of beneficial microbes, it enhances nutrient availability and improves soil structure without the risk of nitrogen lock-up.
For garden retail partners and home growers, Root & Rise offers a clean, low-odour, and sustainable way to nourish plants. It is safe for use around pets, pollinators, and wildlife, making it the ideal choice for flowers, vegetable patches, and raised beds.
Our bioactive frass is sustainably produced from larvae raised on clean, plant-based food streams. With an optimal carbon-to-nitrogen ratio and high levels of humic substances, Root & Rise is the professional choice for restoring vitality to the soil biome across every landscape.
FAQs
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Whole black soldier fly larvae, gently dried so they keep their natural shape and size. Nothing else goes in the bag: no fillers and no additives. Birds and fish recognise them as the insects they would naturally forage for.
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Insect frass: the natural castings left behind by black soldier fly larvae. It is an organic fertiliser that adds bioavailable nutrients, organic matter, humic substances and natural chitin to the soil, feeding soil life and supporting strong root development.
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Around 40% protein, and naturally rich in calcium, essential amino acids and healthy fatty acids, including lauric acid. Full technical and nutritional information is in our product brochure.
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Yes, both are natural. They come from one insect, the black soldier fly, reared on pre-consumer, plant-based material that would otherwise go to waste. Brook & Hollow is the dried larvae; Root & Rise is the frass they leave behind. Nothing leaves the process unused.
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Keep both products sealed, cool and dry, out of direct sunlight. Stored this way, Brook & Hollow keeps for up to 18 months. Root & Rise is clean and low-odour, and safe to use around pets, pollinators and wildlife.