Symbolic of the desert and all its mystery are these Giant Cacti whose grotesque silhouettes add character to the Southern Arizona landscape. They can attain heights of greater than 50 feet and the ages of some have been estimated at least 250 years. The blossom of the Saguaro is the State Flower of Arizona. Harming one in any manner (including cactus plugging) is illegal by state law in Arizona, and when houses or highways are built, special permits must be obtained to move or destroy any saguaro affected.