Disclosed is a horticultural luminaire, a horticultural lighting arrangement including a plurality of the horticultural luminaires, and a method for controlling the horticultural lighting arrangement. The horticultural luminaire includes a main light emitting unit including at least one LED for generating a main spectrum, an environmental sensor for measuring environmental data, and control electronics for determining a position data representing position of the horticultural luminaire, sending out the environmental data and the position data, receiving control data, and controlling the emission intensity of the main light emitting unit on the basis of the control data.