Shout! Factory has announced that it will release P.A. Works and Mari Okada’s Maquia – When the Promised Flower Blooms anime film on a Blu-ray Disc/DVD combo pack on February 5, 2019. In addition, Eleven Arts Anime Studio announced that they will release a deluxe edition Blu-ray Disc that will include additional bonus features, an 80-page booklet, a short scenario written by Okada, and an art box. The deluxe edition is slated for March 2019 through Right Stuf instead of Shout! Factory.
Eleven Arts and Shout! Factory announced a home video distribution deal in October 2018. Eleven Arts also announced a home video distribution deal with Right Stuf in August 2018.
Eleven Arts Anime Studio began screening the film in theaters in the United States and Canada with English subtitles on July 20, 2018 and with an English dub in the United States on September 21, 2018.