They have a variation of different kind of plants that they grow but some of them are not things you can eat. one of the things the grow is cotton a few of the other things they grew is tobacco, corn, sugar, and rice
It depended on the time of the season that would be right for it. They have to plow the field and make sure that the soil is right for the plating and the season so they can do it in the fall summer and spring depending on the soil and the weather in that area at that time .
The conditions depended on where they lived and what crops they were growing at that time and if the soil and temperature and everything was right for that crop they could grow them whenever they needed as long as the conditions are right so it all depended on where they were located to tell how the conditions would be.
It depended on the type of crop but they would maintain them by doing what was necessary for the crop to survive like watering them and making sure they do not get over watered and make sure they get enough sun in order for them to survive and maintain there stability so that they could use them when they are ready for harvest.
It depended on where they lived but in most places they got 160 acres for crops so that they could have enough food for the year and so that they could be able to take care of all of them and plant as many as they needed for that whole year and so that they could have some for them selves and could sell some if need be.