BioBizz Worm-Humus

BioBizz Worm-Humus (Worm·Humus™) is a high-quality organic soil improver made from pure worm castings (vermicast).

Key benefits

• Pure worm castings, lab-tested, with no farmyard waste, landfill waste or compost
• Rich in water-soluble nutrients and beneficial bacteria
• Worms are fed a controlled diet of rock minerals and organic potato peelings
• A nutritious organic fertiliser and all-round soil improver

How to use

• Use to refresh All-Mix, add to substrate mixes already in use, or prepare garden subsoil.
• Blend 10 to 15% Worm-Humus with 85 to 90% substrate.

Sizes

• 10 litre (split from a 40 litre bag)
• 20 litre (split from a 40 litre bag)
• 40 litre bag

Our 10 and 20 litre options are measured out from a full 40 litre bag and sent in a plain black or grey bag.

Feed chart

BioBizz Nutrient Schedules for the full range: BioBizz Nutrient Schedule 2026 (PDF) and the peat-free schedule.

More information: BioBizz Worm-Humus on biobizz.com · BioBizz Worm-Humus product data sheet (PDF).

Delivery:

Dispatch cut off point 12:00pm

(if you order after this time you item will be dispatched the following working day)

Free carriage only apply's to the below if we can use royal mail if the item is to large we will call to discuss as there is other options available.

Postcodes Highlands: FK17-22, G83, IV1-28, IV33-39, KW1-3, KW5-14, PA21-33, PA35-40, PH18-26, PH30-42, AB44-56, IV30-32Islands: HS1-9, IV40-51,IV55-56,KA27,KA28,KW15-17,PA20,PA34,PA41-48,PA60-78,PH42-44,ZE1-3, JE, GY, IM, TR21-25 (ALL ISLANDS APPLY) Northen Ireland: BT