A small shrubby tree, the pineapple guava is an easy to grow evergreen tree that puts out showy blooms in the spring and chicken-egg-sized ripe fruit in the fall. While not a true guava, both the flowers and the fruit are edible and they can handle temperatures all the way down to 10°F. While it can take the Sonoran heat, it will appreciate a little afternoon shade to avoid scorching the leaves during the summer.