If you're looking for a succulent that's easy to propagate, look no further than Echeveria. Air plants are also great for those with brown thumbs looking to get some bragging rights. What Type of Water Is Used for Air Plants It won't hold water for long if the soil has too much substrate. The digital age makes it easy for misinformation quickly to spread. Watering air plants doesn't have to be a high-brow process. It lacks nutrients and minerals, which is bad news for air plants that depend on them for growth.