AbstractBlue and far‐red light play a key role in plant growth, so it is necessary to develop blue and far‐red dual emitting phosphors. However, the match between phosphors and plant pigments is not satisfactory. In this work, we synthesized a series of blue and far‐red dual emission Gd2MgTiO6: Bi3+, Cr3+ (GMTO: Bi3+, Cr3+) phosphors and discussed the luminescence performance. The blue emission at 430 nm is ascribed to 3P1 → 1S0 transition of Bi3+ and the far‐red emission is ascribed to 4T2 → 4A2 and 2E → 4A2 transitions of Cr3+. Notably, because of the energy competition between Cr3+ ions and host materials, the luminescence tuning realized with the content of Cr3+ doping. In addition, an energy‐transfer performance occurred from Bi3+ ions to Cr3+ ions and the photoluminescence intensity of Cr3+ can be enhanced by Bi3+. The pc‐LEDs devices were synthesized by GMTO: Bi3+, Cr3+ phosphor, and ultraviolet (UV) chips. Finally, the emission of GMTO: Bi3+, Cr3+ phosphor matched well with the absorption spectra of plant pigments which indicated the potential applications in LED plant lamp.