The Desert Botanical Gardens in Phoenix, AZ is a great way to get a sample of Arizona's diverse and spectacular flora.  Check out The Gardens in the spring, when all of the plant and flowers are blooming in beautiful, vibrant colors.  This is a great place to take visiting relatives who love to garden or are just nature buffs.   It's an easy walking adventure with many cozy benches to sit and bird or nature watch.  Midway through the journey is a nice spot to enjoy a little refreshment and sample some yummy treats.  At the end of your journey is a great gift shop with books, jewelry and even plants found on the garden grounds for sale.  Visit when the day time temperatures are moderate and you're guaranteed to have an enjoyable time.  Be sure to wear sunscreen and bring a camera.  Don't forget to have fun!