Planting season was the time of year in which crops were sown.
In 2371, Kai Winn noted to Kira Nerys that in six months, Rakantha Province would enter planting season and was in need of the soil reclamators they had loaned to Dahkur Province. Later, after receiving a counteroffer, Winn noted that it would be over by the time Shakaar Edon planned to return the technology to Rakantha. (DS9: "Shakaar")