Applying the principles of crop rotation and companion planting, Siyakhana produces a broad selection of seasonal crops, including beans, maize, pumpkins, cabbage, kale, lettuce, spinach and brussels sprouts. These vegetables are then distributed to the partner-NGO's of the Siyakhana group, thus supplementing the diets of inner-city orphans and vulnerable children cared for by these CBO's.

Companion planting of vegetables reduces the impact of insect pests by placing crops in such a way that they protect each other by attracting beneficial insects, or by releasing insect-repellent chemicals. Together with crop rotation, this ensures that the soil maintains a healthy balance of nutrients. And so, guilds of useful plants grow together, supporting and protecting one another.