(Francisco Kjolseth | The Salt Lake Tribune) Red Butte Gardens, offers visitors a tiered view of drought-friendly gardening practices as seen during a recent visit to the gardens on Monday, July 26, 2021. As severe drought grips the west, a visual representation of “hydrozoning” offers people a way to arrange different plant varieties according to their water needs. From varieties that don’t need watering all the way to the most selfish of plants.