This largely depends upon the variety of flowers. As a rule of thumb between two and four days. Smaller and more delicate flowers will not keep as well as larger more robust flowers. For 2023 we are only offering deliveries on Wednesday to Friday as we develop the business. If those dates is already fully booked or you plan to use the flowers on Monday/Tuesday then apologies please try another supplier. Remember that these are fresh flowers that are out of water so they will not last indefinitely. You want them to be as fresh as possible when you use them. Alternatively consider petal confetti or dried flowers which hold better.