My wedding is on a Saturday, when should I request delivery of my peony buds?

Here’s the whole blooming deal for a Saturday event…
Wednesday:  Early Wednesday morning, the boxes are iced and delivered to FedEx.  You will receive tracking information at this time.
Thursday:  FedEx delivers your peonies directly to your address.
Thursday/Friday:  Your hydrated peony buds will start to bloom.
Saturday:  Your beautiful peony blossoms are ready for the big time…