I had to look up freeze dried flowers because I did not know of their existence. After reading some info on them, in my opinion, they should work as well as any dried flower. I am not sure how fragile they are, but any dried flower needs to be handled with care. It is just a different way of taking out any moisture from the flower and seems to preserve the color better than other ways. The flowers also have no weight on them to change the shape of the flower so that is nice. I am willing to give them a try if I can find some not to expensive.
Arlene