When I looked at the stats on these two one blooms mid season and one blooms late. If they bloom as specified they would not be blooming at the same time.

DD

They do have similar coloration, but I think they will be fine next to one another. If you don't like the look, you can always move one of them in the fall or next spring. Mids and lates will have simultaneous blooms for a week or two.

Debra