The royal paulownia or empress tree is a fast-growing shade tree. (Howard Garrett / Special Contributor) One of the trees that brings me questions every year is one that has some extremely ...

The plant's pedigree and regal names include Empress Tree, Kiri Tree, Sapphire Princess, Royal Paulownia ... In the United States, many of these trees have been planted for wood production ...

The ‘Royal Empress’ is a fast-growing ... The main concern is this is a tropical tree that could be killed if we have a frost. Mature trees grow in Key West, which is frost-free.