I like to turn my garden (till it) around the middle of March, then till it again around the first of April and plant it during the first and second weeks of April. It just depends on the rain and how wet the dirt is.
Depends where you live. If you live in a place where it's always warm you should wait until late winter or early spring. If you live in a place where it is cold in winter, I think you should start in April
Decide what you want to grow, once you have decided this if you are planting from seed then the packets of seed that you buy usually have charts on the back showing you what month is best to sow/harvest for best results
