Singers have souls tied to all things that grow on the earth. The talent may manifest as something as innocuous and unremarkable as a person being described as “green-fingered,” to an innate ability to encourage and direct the growth of plants.
Though not connected with the One Power, there is a suggestion that the two abilities in tandem can be powerful allies, as demonstrated by the myths of gods connected with the archetypal Green Man or Mother Nature figures.
During the Age of Legends, those with both gifts helped create the Nym, plant constructs used to help tend gardens and crops alongside Ogier and the Da’shain Aiel.