If you live in an area where summer temperatures are consistently in the 80s or 90s, gaillardias are a good choice to plant, as they can withstand a lot of heat. Gaillardias are also drought-tolerant once established, so it’s not a problem if your area doesn’t get a lot of rainfall. Gaillardia’s biggest enemy is humidity. They will not do well in an environment with a lot of moisture consistently in the air.