Slave Life The warm climate, boundless fields of fertile soil, long growing seasons, and numerous waterways provided favorable conditions for farming plantations in the South (Foster). The richness of the South depended on the productivity of the plantations (Katz 3-5). With the invention of the cotton gin, expansion of the country occurred. This called for the spread of slavery (Foster). Slaves, owned by one in four families, were controlled from birth to death by their white owners. Black men, women, and children toiled in the fields and hou ....