Calathea Rufibarba is an exotic plant that grows under the shade of tall trees in warm and humid weather. Most of the time, Calathea Rufibarba is grown as an indoor plant because of unfavourable outdoor conditions. However, if your outdoor temperatures remain above 60 F and humidity levels are reasonable, you can plant it outdoors. Please make sure to plant the Rufibarba Calathea under a shade as the plant cannot tolerate direct sunlight.