Food is much more healthier when it is home grown and you know what your plant is eating. You are in control of how much pesticide and fertilizer goes into the soil, so you know what you are eating.  Home grown foods don't harm the environment as much as the ones in the store, which are mostly genetically modified. Not only that, but if you home grow food it will reduce one's greenhouse gas emissions and increase growing in your lot of land. If you plant fruits and vegetables at school or at home, then the soil will become more nutritious and healthy. Additionally, this food would be cheaper since it does not need to be bought from the store.