Madalyn, I have 2 avocado trees in my yard and bouganvilleas. Lots of cacti. We're semi-desert -- below freezing only 2 or 3 nights a year, hideously hot summers, and not much rain. Tomato plant grows well, but the opossum family gets more than I do (like the avocados!) Orange, lemon, zucchini and strawberries all flourish in this climate. My next door neighbor has 20 kinds of flowers, but I couldn't begin to tell you what they are! She also has more time to garden.
Where do you live?