A seed tube mounting bracket is provided. The seed tube mounting bracket may be adjustable to connect a seed tube to various seed planters. The seed tube mounting bracket may include an elongated body including opposing first and second ends defining a longitudinal length of the body, first and second attachment members connected to the body substantially transverse to the longitudinal length, and an adjustment mechanism associated with the body to adjust an effective length of the mounting bracket, such that the mounting bracket may be attached to frame rails of various sizes.