Watering a tropical garden in Phoenix, Arizona
One of the reasons tropical gardens fail in the Phoenix, Arizona area is that water isn't consistently delivered to the plants. The Sonoran Desert is no place to plant anything but cactus if you plan on watering with a hose. But if you've visited gardens like mine, and hadn't seen the watering system, well, that's the point. My garden has tiny sprayer heads that are mostly hidden behind rocks. I took this photo from an angle so that you could see it better. From the front, not much shows. It's an ordinary low-pressure drip system, which has a 1/2-inch main line that runs all the way around the garden, and 1/4-inch spaghetti tubing. It's set to come on automatically with an expensive battery-operated timer. In fact, the whole system was built on the cheap. It's the day after Thanksgiving, 2014, and Phoenix is recording record highs. It doesn't usually get this hot in November, so I'm doing some extra watering. I have turned the system on manuall...