This is Strelitzia reginae, also known as crane flower, and bird of paradise. These flowers grow to about 6 feet high, putting these gorgeous blossoms above its own foliage. This is one of the coolest looking plants that I know of. The city of Los Angeles has an official flower and this is it. This plant likes to blossom in late Winter and early Spring. This eye catching plant is very popular with a number of birds, bees, and butterflies, and you can also cut and dry this flower, or use it fresh in an arrangement. USDA Hardiness Zones 9 to 11.