Rockdust?

Garden Centre > Garden & Growing Essentials > Chemicals & Fertilizers > Feeds & Fertilisers

This 420 million year old, freshly crushed, finely ground volcanic dust has been found, in trials, to produce heavier crops with better flavour, higher nutritional content, longer storage life, better pest resistance and improved drought tolerance! Its extremely high mineral content actually improves the health of the soil, and it has also been found to speed up composting and produce better compost. Can be applied at any time of year. One 20kg bag is enough to treat 40msquared of soil.

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