Hibiscus is not a plant one associates with the desert but it is a plant found in most nurseries in Phoenix, alongside the cacti. I've seen different species with beautiful red, white, pink and orange flowers but the best one for our climate is the red hibiscus.
These photos of my "Brilliant" (aka San Diego Red) hibiscuses were taken this morning. Last year we planted eight bushes around the perimeter of our backyard and two, that have been trained as trees, in our courtyard. The blooms only last one day but the plant produces flowers year round. I expect an abundance of flowers this summer. I love the hibiscuses because they remind me of the tropical island that I call home, Puerto Rico. On the island they are called Amapola.
(note: since English is not my mother tongue, before writing this entry, I looked up the plural of hibiscus. Most dictionaries have hibiscuses as the plural but I found other references stating that the noun is invariable. I hope I have not erred in choosing hibiscuses for the plural but if I did, please let me know.)