- Gaillardia (commonly known as Blanket Flower) is an exceptional, highly heat-tolerant plant that thrives in Southern Arizona's intense desert climate - While many gardeners recognize the popular award-winning cultivars named after the state (like 'Arizona Sun'), southern Arizona is also home to its own indigenous wild variety, Gaillardia Arizonica (Arizona Blanketflower) - Whether you are looking to plant native species or compact garden hybrids, these vibrant, daisy-like flowers provide effortless color through the hottest months of the year