A root feeder wherein a closed housing defining a mixing chamber has a restricted water feed inlet and a fertilizer feed inlet and a plurality of tines communicating with the chamber and extending outwardly therefrom, the tines having outlet ports at their outboard ends and having open inboard ends so disposed relative to the mixing chamber as to insure a thorough mixing within the chamber due to a generated churning of the water and fertilizer before charge into the tines and feed from the ports thereof to the soil in which the root feeder is embedded.