In addition to our natural sea-salts, Khoisan produces a gypsum by-product, Gardener’s Gold Dust, an organically certified fertilizer which contains seaweed flakes, that is sold to nurseries in 5kg and 25kg bags.
Although the value of gypsum as a soil additive has been recognised for decades, each year field tests around the world reveal more and more of the benefits of gypsum.
Gypsum is one of those rare materials in that it amends soil alkalinity, equalizes pH levels, and leaches out harmful salts. Gypsum conditions and improves soil structure allowing air and water penetration and root development. Gypsum nourishes the plant with high grade calcium and protects it with sulphur.
Suitable for use in all soils from clay to sandy, from alkaline to acid, Khoisan’s Gardener’s Gold Dust is the best organic soil conditioner that restores soil to optimum health, is weed-free, does not burn roots or leaves, and provides the following properties: