Coming from Australia we have to cope with lots of very hot temps. I also don't have town water, so have to be very water wise. Drip line hoses are the best..mine lay on the soil and are covered by mulch, keeping the soil moist and avoiding evaporation. You can use olla pots for individual precious plants. I made my own from terracotta pots, or use water spikes on upside down bottles. Having lots of compost in your soil helps a lot as it hold the moisture well