Fresh flowers are cut flowers that florists typically work with to make fresh arrangements.
On the other hand, dried flowers are initially fresh flowers that have undergone a natural dehydration process to eliminate moisture. This can be done in various ways, such as air drying or microwaving the flowers.
Preserved flowers undergo a flower preservation technique, where the moisture in the foliage and flowers are replaced with a glycerine solution. Compared to dried flowers, preserved flowers feel and look more like fresh flowers.