What kind of flowering bush can be put in a wet full area with full sun?
Sambucus, known as elderberry not only flowers but delivers edible fruit. It prefers acidic soil but will grow in mildly alkaline soil. Pussy willow, inkberry are but a few of the other possibilities. Contact your county extension service or search online for your state's extension service for a list of shrubs in your area. Here is the list from Pennsylvania's extension service: https://extension.psu.edu/trees-shrubs-and-groundcovers-tolerant-of-wet-sites