Good Afternoon Everyone

As I may have shared, or may not have.
I am getting married in October. :)
I want to do wheat grass centerpeices.
Like this one kind of

By question is, is there any kind of flower I can also plant with the grass that might grow at the same speed or at least bloom in a week? I plan to do these a week out as I have read the grass grows quickly.
Any help would be appreciated.
Thanks!!!