Choose a professional grow substrate that is exactly tailored to the needs of your plants. You have the choice between soil mixtures with varying nutrient content for cultivation, growth and flowering. Soil as a growing medium can be optimised for a wide variety of plants and forms of cultivation. Perlite, for example, can be added to increase the air supply to the roots. The nutrients can also be adapted to your personal needs by adding fertilizers such as guano or worm humus.