Cacao’s root systems spread through the surface of the soil, so the composition of topsoil is exceedingly important. Cacao requires high organic content in its soils, as well as ample drainage of standing water and a pH that is neither too alkaline nor too acidic. Coarse grain soil is also desirable, at least at the surface level. It is also a shade growing tree, and is particular in its growing regions (10 degrees to either side of the equator). A location with healthy soils and geology will produce healthy cacao trees, which will in turn produce quality pods. This highlights the permaculture principle of earth care. Soils that regularly receive new organic matter, and that grow other plants which regulate chemical and mineral levels, will be able to grow healthier and more productive cacao trees. Nutrient-depleted soils, or areas with poor drainage (or too much drainage) would be less likely to produce healthy trees. Cacao does not do well as a monoculture, and can quickly deplete a location of soil nutrients. Agroforesting would be extremely geologically practical in relation to cacao, and would provide a soil base that continually replenishes itself.