A small detailed that sometimes gets overlooked is who will be responsible for pinning on the boutonnieres and corsages?

Ask your floral designer if they provide this service, and if so, how much extra will it cost?

Based on my experience, if you have 10 or less to pin on, the floral designer will usually have time for this (provided it is agreed upon ahead of time). If you have 10 or more to pin on, it is suggested that a few family members help out.

Keep in mind that your floral designer will most likely NOT know your corsage and boutonniere recipients by face, so it make take them longer to find them in the crowd.

Also, if the set up for your Ceremony flowers is quite involved and requires extra time, it is best to keep your floral designer free to manage this task, vs, having them spend valuable time pinning on the corsages and boutonnieres. Make sure each corsage and boutonniere is marked with the recipient's name, and have your floral designer provide extra pins.