A plant cultivation LED light source (1A) of the present invention includes: a substrate (2A) at least one blue LED chip (11), provided on the substrate (2A), for emitting blue light a red phosphor mixed resin (12) which is provided so as to cover the blue LED chip (11) and contains red phosphors (12a) being dispersed or settled down therein, each of the red phosphors (12a) emitting red light in response to excitation light emitted from the blue LED chip (11) and a silicone resin (13) which is transparent and is provided so as to cover the red phosphor mixed resin (12).
