Vermicompost is the product or process of composting (vermiculture) using various worms, usually red wigglers (Cariba worms / Kariba wurms / Eisenia foetida), white worms, and other earthworms to create a heterogeneous mixture of decomposing vegetable waste, bedding materials, and vermicast.Vermicast, also called worm castings, worm humus or worm manure, is the end-product of the breakdown of organic matter by an earthworm. These castings have been shown to contain reduced levels of contaminants and a higher saturation of nutrients than do organic materials before vermicomposting.

Earthworms are keystone soil organisms in regulating nutrient cycling in ecosystems through:
(i) their own metabolism that leads to high availability of carbon and nitrogen from metabolic wastes such as urine, mucus and tissue,
(ii) the dispersal and the stimulation of soil microorganism activity associated with passage through the intestinal tract and
(iii) the distribution and the mixing of organic matter and soil mineral particles.


Containing water-soluble nutrients, vermicompost is an excellent, nutrient-rich organic fertilizer and soil conditioner.
Vermicast has been proven by agriculturalists and scientists to be the best long-term, natural soil fertility enhancing product available.
Improves soil aeration.
Enriches soil with micro-organisms (adding enzymes such as phosphatase and cellulase).
Attracts deep-burrowing earthworms already present in the soil.
Unlike other compost, worm castings also contain worm mucus which helps prevent nutrients from washing away with the 1st watering and holds moisture better than plain soil.
Unlike other fertilizers, it wont "burn" the plants.

Enhances germination, plant growth, and crop yield.
Improves root growth and structure.
Enriches soil with micro-organisms (adding plant hormones such as auxins and gibberellic acid).
Rich in plant nutrients.

Free of pathogens and toxins.

Natural pesticide, inhibits arthropod pests and plant diseases.


Dissolve a handful (15 mg) in a 5 liter bucket. Pour onto plants 1x or 2x per week. (If you have 10 pot plants, and you pour 2x per week, then 1kg vermicast should last 1 month.) Keep vermicast wet once opened. Keep vermicast away from sunlight.

Earthworm compost (vermicast): organic soil fertilizer. South Africa, Centurion

Buy     2.5 liter for R30
Buy   15.0 liter for R60
Buy 150.0 liter for R55
Buy 300.0 liter for R50
Collect from South Africa, Hartbeespoort, Stilfontein or Centurion, Clubview
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For plants, fabric pots are better than plastic bags and cement pots. South Africa, Pretoria, Gezina

This page has been updated on the 2021-08-22.