The Assumption of Mary Novena is started on August 7th and finishes on August 15th. The feast day of the Assumption of Mary, which is a holy day of obligation in the Catholic Church, is on August 15th.  

Novena Prayer*

Eternal Father, you graciously looked upon the humility of the Blessed Virgin Mary, and made her to be the Mother of the Word Incarnate, Jesus Christ our Lord. Grant we beseech you that we who honor her Assumption into the Kingdom of Heaven, may by her Motherly intercession also come to share in the inheritance of those whom you have redeemed by the precious Blood of your Son, Jesus Christ our Lord.

Most holy Immaculate Virgin and my Mother Mary, to thee who art the Mother of my Lord, the Queen of the world, the advocate, the hope, and the refuge of sinners, I have recourse today, I who am the most miserable of all. I render thee my most humble homage, O great Queen, and I thank thee for all the graces thou hast conferred on me until now. I love thee, O most amiable Lady; and for the love which I bear thee, I promise to serve thee always, and to do all in my power to make others love thee also. Dearest Mother bring before the throne of your beloved Son the prayers and intentions I ask during this novena.

(Here we mention our prayers. Pray for the intentions of our Holy Father the Pope, and for all the clergy. Pray also for the sick and dying, and for the suffering souls in purgatory)

I place in thee all my hopes; I confide my salvation to thy care. Accept me for thy servant, and receive me under thy mantle, O Mother of Mercy. And as thou art so powerful with God, deliver me from all temptations, or rather obtain for me the strength to triumph over them until death. Of thee I ask a perfect love for Jesus Christ. Through thee I hope to die a good death. O my Mother, by the love which thou bearest to God, I beseech thee to help me at all times, especially at the last moment of my life. Leave me not, I beseech thee, until I am safe in heaven, blessing thee, and singing thy mercies for all eternity. Amen.

Remember, O most gracious Virgin Mary, that never was it known that anyone who fled to thy protection, implored thy help, or sought thy intercession, was left unaided. Inspired with this confidence, I fly unto thee, O Virgin of Virgins, my Mother; to thee I come, before thee I stand, sinful and sorrowful; O Mother of the Word Incarnate, despise not my petitions, but in thy mercy hear and answer me. Amen

Available in my Etsy shop at the following link:  Assumption of Mary Printable Prayer Card.