Raised beds, collecting rainwater as well. - perhaps tiered beds can have a French drain at the end that catches excess water run off from the rain. It would be a larger area to collect rain water and would only be extra If the other plants were all watered.
How to Build a Concrete Fountain: Carving stone requires years of training, extraordinary skill and endless patience—or you can cheat and use power tools. -Overview -Selecting a stone -Getting started -Cut, chisel and grind the bowl -Cut the channel -Set the fountain stone